[tex]r = 3sec( \alpha ) \\ r = \frac{3}{cos( \alpha )} [/tex]
[tex]x = rcos( \alpha ) \: \: \: \: \: \: \: cos( \alpha ) = \frac{x}{r} [/tex]
[tex]r = \frac{3}{ \frac{x}{r} } \\ r = \frac{3r}{x} \: \: \: \: \: \: x = 3 \\ line[/tex]
f(x) = 6x + 3, find f(8)
Answer:
f(8) = 51
Step-by-step explanation:
f(x) = 6x + 3
Let x = 8
f(8) = 6(8) + 3
= 48+3
= 51
Answer:
51
Step-by-step explanation:
f ( x ) = 6x + 3
To find the value of f ( 8 ), replace x with 8.
f ( 8 ) = 6 × 8 + 3
f ( 8 ) = 48 + 3
f ( 8 ) = 51
The point (-4,5) is rotated 270 degrees counterclockwise
The new point that will be formed when the point (-4,5) is rotated 270 degrees counterclockwise is; (5, 4)
What is the transformation rule?There are different types of transformations namely dilation, rotation, reflection e.t.c
Now, when we rotate a point 270 degrees counterclockwise about the origin our point A(x,y) becomes A'(y,-x). This means that we switch x and y and make x negative.
Now, we are told that the point (-4,5) is rotated 270 degrees counterclockwise. Thus, following the transformation rule as described above gives us;
(-4,5) → (5, 4)
Thus, we conclude that the new coordinate we will obtain in this process is (5, 4)
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Help would be appreciated
The value of [tex]3\frac{3}{5}[/tex] ×[tex](-8\frac{1}{3})[/tex] is after simplification is C)-30
What is mixed fraction?
A mixed number combines an integer (whole number) with a fraction. It is also sometimes referred to as a mixed fraction (part of a whole number). When a number contains both an integer (whole number) and a correct fraction, it is known as a mixed number or mixed fraction (a fraction whose numerator is less than its denominator).
Here the given expression is ,
=> [tex]3\frac{3}{5}[/tex] ×[tex](-8\frac{1}{3})[/tex]
Now we need to convert them into improper fraction then,
=> [tex]\frac{15+3}{5}[/tex] × [tex]\frac{-(24+1)}{3}[/tex]
=> [tex]\frac{18}{5}[/tex] × [tex]\frac{-25}{3}[/tex]
=> 6 × -5 = -30
Hence the correct option is C)-30.
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PLEASE ANSWER
50 degrees
120 degrees
60 degrees
40 degrees
The angle B in triangle ABC is 60° i.e. C.
What is a triangle?
In Geometry, triangles are the type of polygons, which have three sides and three vertices. This is a two-dimensional figure with three straight sides. A triangle is considered a 3-sided polygon. The sum of all the three angles of a triangle is equal to 180°. The triangle is contained in a single plane. Based on its sides and angle measurement, the triangle has six types.
Based on the sides of a triangle, a triangle is classified into 3 types, namely:
Scalene Triangle – All the sides are of different measures.
Isosceles Triangle – Two sides of a triangle are of the same measure and the remaining side has a different measure.
Equilateral Triangle – All the 3 sides of a triangle are of the same measure.
Based on the angles of a triangle, a triangle is classified into 3 types, namely:
Acute Angle Triangle – All the angles of a triangle is less than 90°.
Obtuse Angle Triangle – One of the angles of a triangle is greater than 90°.
Right Angle Triangle – One of the angles of a triangle is equal to 90°.
Now
∠NAB+∠CAB=180° (Supplementary angles)
∠CAB=180-∠NAB
=180-100
∠CAB=80°
As
∠A+∠B+∠C=180° (sum of all angles of a triangle =180°)
∠B=180-80-40
∠B=60°
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Write 3 numbers that are divisible by
both 2 and 5.
Numbers divisible by 2 and 5:
[tex]10[/tex][tex]20[/tex][tex]30[/tex]Check:
[tex]10\div2=5\\10\div5=2[/tex]
[tex]20\div2=10\\20\div5=4[/tex]
[tex]30\div2=15\\30\div5=6[/tex]
Determine whether the geometric series is convergent or divergent.
10−8+6.4−5.12+⋯
O Convergent
O divergent
The given series is convergent and the sum(S) is 5.555.
Consider 10 - 8 + 6.4 - 5.12 + ...
A geometric progression will converge if the common ratio of the series is between -1 and 1.
Here is the common ratio,
r = -8/10
⇒ r = -0.8
Which is -1 < -0.8 < 1.
Hence, the given series is convergent.
Sum of series = S = a/(1 - r)
Here, first term(a) = 10,
common ratio(r) = -0.8,
S = a/(1 - r)
⇒ S = 10/(1 - (-0.8))
⇒ S = 10/(1 + 0.8)
⇒ S = 10/1.8
⇒ S = 5.555
Therefore, the given series is convergent and the sum( S)is 5.555.
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calculate the iterated integral. 3 0 1 5xy x2 + y2 dy dx 0
The value of the integral can be calculated by using the simple rules of definite integral and double integral.
The first integral is a bit tricky, as the limits of integration are not in the standard order (with respect to x and y). However, we can change the order of integration by switching the limits of integration, so that we can use Fubini's theorem.
The double integral can be solved by converting the rectangular region R into polar coordinates.
The double integral is ∫∫R 5xsin(x+y)dA, R=[0,pi/3]×[0,pi/6]. This can be further solved as
= ∫(0,pi/3) ∫(0,pi/6) 5rrsin(rcos(θ)+rsin(θ))dθ dr
= ∫(0,pi/3) ∫(0,pi/6) 5r^2sin(r(cos(θ)+sin(θ)))dθ dr
= ∫(0,pi/3) 5r^2(-cos(r*(cos(θ)+sin(θ))) | (0,pi/6))dr
= ∫(0,pi/3) 5r^2(-cos(r*(√(2)/2)))dr
= -5/2∫(0,pi/3) r^2cos(r*(√(2)/2))dr
The integral above is not in a closed form but can be evaluated using numerical integration techniques.
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Complete Question:
Calculate the iterated integral. integral_0^3 integral_0^1 5xy Square root x^2 + y^2 dy dx = Calculate the double integral. double integral R 5x sin (x + y) dA, R = [0, pi/3] times [0, pi/6] The value of integral is
what is the quotient of (x^4-6x^3-19x^2+24x) divided by (x+3)?
The quotient of the division is x^3 - 3x^2 - 10x + 64
How to determine the quotientFrom the question, we have the following parameters that can be used in our computation:
quotient of (x^4-6x^3-19x^2+24x) divided by (x+3)
Using the long division method of quotient, we have
x + 3 | x^4 -6x^3 -19x^2 +24x
The division steps are as follows
x^3 - 3x^2 - 10x + 64
x + 3 | x^4 -6x^3 -19x^2 +24x
x^4 + 3x^3
------------------------------------------------
-3x^3 -19x^2 +24x
-3x^3 - 9x^2
------------------------------------------------
-10x^2 + 24x
-10x^2 - 30x
------------------------------------------------
64x
64x + 192
----------------------------------------------------
-192
Hence, the quotient is x^3 - 3x^2 - 10x + 64
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Use Desmond to graph the following system of inequalities.
y≤ 1/4x +3
y ≥-x+2
Then choose the following points that are solutions to the system.
A.(0,0)
B.(2,1)
C.(3,3)
D.(-1,1)
E.(0,1)
Answer:
B, C
Step-by-step explanation:
You want to graph the inequalities y≤1/4x+3 and y≥-x+2 and identify points that are solutions to the system.
GraphThe graph is attached. It matches selection B of the graphs you are shown. The points that lie in the solution area are B(2, 1) and C(3, 3).
PLEASE HELP OR I WILL FAIL 1/7+3/7
Answer: 4/7
Step-by-step explanation:
pretty simple, 1/7 and 3/7 both has a denominator of "7", so the seven stays the same. (While writing this I made a chart to see where I put everything)
Write:
1/7 = (denominator 7)
+ 3/7 = (denominator 7)
Now we start doing the math, what goes into 7? 7x1 so 1 x 3 = 3
know we go up to the numerator, 7x1=7, so 1 x 1 = 1
add 3 + 1 and that adds up to 4
so your answer is 4/7, hope it helps
please help me!!! What is the area of the trapezoid?
The area of trapezoid is 16 m².
Given in the figure,
Height of trapezoid = 4 m
Length of 1st parallel base = 2 m
Length of 2nd parallel base = 6 m
We know that,
Area of trapezoid = 1/2 * sum of bases * height
∴
Area of trapezoid = 1/2 * (2+6) * 4
= 8 * 2 = 16 m²
Therefore, the area of trapezoid is 16 m².
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Can someone please tell me the answer will mark brainiest
Radius, diameter, center, and circumference--all are parts of a circle .Every point in the plane that is a certain distance away from a certain point forms a circle (center).
what is circle?Every point in the plane that is a certain distance away from a certain point forms a circle (center). It is, thus, a curve formed by points moving in the plane at a fixed distance from a point. A circle is a closed two-dimensional object where every pair of points in the plane are equally spaced out from the "center." A line that goes through the circle creates a specular symmetry line. At every angle, it is also rotationally symmetric about the center.
Area of circle =
[tex]\pi r^2\\r = 10\\A = 3.14 X 10 X 10\\A = 314 unit sq\\[/tex]
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On solving the provided question, we can say that area of circle = [tex]\pi r^2 =[/tex] 3.14*.3.4*3.4 = 1.28112 cm sq.
What is circle?Every point in the plane that is a certain distance away from a certain point forms a circle (center). It is, thus, a curve formed by points moving in the plane at a fixed distance from a point. At every angle, it is also rotationally symmetric about the center. A circle is a closed two-dimensional object where every pair of points in the plane are equally spaced out from the "center." A line that goes through the circle creates a specular symmetry line. At every angle, it is also rotationally symmetric about the center.
here,
in the circle
the given radius is as = 3.4
area of circle = [tex]\pi r^2 =[/tex] 3.14*.3.4*3.4 = 1.28112 cm sq.
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There are 140 students in the seventh grade, and 5% are in the Environmental Club.
How many students are in the Environmental Club?
Answer:
7 students.
Step-by-step explanation:
A trick for this is to find 10% of the students in the Environmental Club and then divide by 2.
10% of 140 is simple; just remove the 0 and you got 14.
Next, divide 14/2 to get 5%
14/2 = 7
7 students are apart of the Environmental Club
Now solve the equation Bc = proj, d = v by typing in the following: >> C = Blv Check that your answer is correct by entering >> B*C - v Make sure the answer is zero. (Keep in mind that MATLAB may return a very small number instead of zero due to rounding errors.)
Calculate S3, S, and Ss and then find the sum for the telescoping series 3C0 n + 1 n+2 where Sk is the partial sum using the first k values of n. S3 = 1/6 S4 = __
S5 = __
S = __
The solutions are -
S3 = (1/3) - (1/4) + (1/4) - (1/5) + (1/5) - (1/6)
S4 = (1/3) - (1/4) + (1/4) - (1/5) + (1/5) - (1/6) + (1/6) - (1/7)
S5 = (1/3) - (1/4) + (1/4) - (1/5) + (1/5) - (1/6) + (1/6) - (1/7) + (1/7) - (1/8)
The sum of the series is 1/3.
To find S3, we need to find the sum of the first 3 terms of the series:
S3 = (1/3) - (1/4) + (1/4) - (1/5) + (1/5) - (1/6)
To find S4, we need to find the sum of the first 4 terms of the series:
S4 = (1/3) - (1/4) + (1/4) - (1/5) + (1/5) - (1/6) + (1/6) - (1/7)
To find S5, we need to find the sum of the first 5 terms of the series:
S5 = (1/3) - (1/4) + (1/4) - (1/5) + (1/5) - (1/6) + (1/6) - (1/7) + (1/7) - (1/8)
To find the sum of the telescoping series, we can use the property of the telescoping series where the terms will cancel out. In this case, we can see that the first term of each group of two terms cancels out with the second term of the next group of two terms.
S = (1/3) - (1/8)
The series starts at n=2 and ends at infinity, so the sum of the series is the difference between 1/3 and the limit of 1/n as n approaches infinity, which is zero.
S= (1/3) -0 = 1/3
So the sum of the series is 1/3.
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The complete question is -
Calculate S3, S4, and S5 and then find the sum for the telescoping series: S=∑n=2∞(1/n+1)−(1/n+2). where Sk is the partial sum using the first k values of n.
find the equation of the lines on the graph
The equation of the line in slope intercept form is y = 1 / 2 x - 3 / 2.
How to find the equation of a line?The equation of a line can be represented in slope intercept form as follows:
y = mx + b
where
m = slopeb = y-interceptLet's find the slope of the line using the coordinates.
Therefore, using (-1, -2) and (-5, -4)
Hence, the slope of a line is the change in the dependent variable with respect to the change in the independent variable.
Therefore,
m = -4 + 2 / -5 + 1
m = - 2 / -4
m = 1 / 2
Therefore, let's find the y-intercept using (-1, -2)
y = 1 / 2 x + b
-2 = 1 / 2 (-1) + b
-2 + 1 / 2 = b
- 3 / 2 = b
Therefore, the equation of the line is y = 1 / 2 x - 3 / 2.
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please help me understand this
The value of a is 3√3/2 and value of b is 3/2. The solution has obtained using the trigonometry formulas.
What is trigonometry?
The study of the right-angle triangle's sides, angles, and connection is the main focus of the field of mathematics known as "trigonometry." Therefore, it helps to find the unknown or missing angles or sides of a right triangle using the trigonometric formulas, functions, or trigonometric identities. The angles in trigonometry can either be expressed in degrees or radians. The most used trigonometric angles for computations include 0, 30, 45, 60, and 90 degrees.
In the figure, we are given that one angle measures 30° and the other measures 90° and the hypotenuse is 3.
So, using trigonometry, we know that
Cos theta = adjacent side/hypotenuse
And, Cos 30° is √3/2
So,
⇒√3/2 = a/3
⇒a= 3√3/2
Sin theta = opposite side/hypotenuse
And, Sin 30° is 1/2
So,
⇒1/2 = b/3
⇒b= 3/2
Hence, the value of a is 3√3/2 and value of b is 3/2.
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An image of lines p and q parallel to each other. Lines m and n are not parallel to each other. Line m, p form an angle of one hundred two degrees and an angle marked y. Lines n, q form an angle marked x and an angle of one hundred fifteen degrees.Parallel lines p and q are cut by two non-parallel lines, m and n, as shown in the figure. The value of x is degrees, and the value of y is degrees.
Answer:
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An IV is infusing at 77 mcgtt/min. What would this rate of flow equal in mL/h?
A. 77 mL/h
B. 12 mL/h
C. 770 mL/h
D. 7.7 mL/h
An IV is infusing at 77mcgtt/min. rate of flow equal in mL/h is 77 mL/h
1gtt/min equals 3.00 mL/h
If you simply need to figure out the infusion rate, or the mL per hour to infuse, take the total volume in mL, divided by the total time in hours that the medication is ordered to be infused over, to equal the rate in mL per hour.
1 drop per minute to milliliters per hour = 3.00 mL/h
2 drops per minute to milliliters per hour = 6.00 mL/h
Change hours to minutes. Change milliliters to drops.
1 ml : 60mcgtt
1hr :60min
77mcgtt/min =77*60/60 ml/h
=77ml/h
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Which if the following is the correct graph of the solution to the inequality-13>-5x+2>-28
The correct graph of the solution to the compound inequality as given in the task content is;
What is the graph of the solution to the given compound inequality?As evident from the task content, it follows that the correct graph of the solution to the compound inequality is to be determined.
Since the given compound inequality is; -13 > -5x + 2 > -28.
To solve the inequality, subtract 2 from all sections of the compound inequality;
-15 > -5x > -30
Divide through the inequality by -5 while flipping the inequality signs so that we have;
3 < x < 6
Therefore, the correct graph for the compound inequality in discuss is as represented in the attached image.
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Find the domain and the range of the function. (Enter your answers using interval notation.)
h(x) = −√x+6
The domain and the range of this function in interval notation include the following;
Domain = [-6, ∞].
Range = [-∞, 0].
How to identify the domain and range of a function?In Mathematics, the horizontal extent of a graph represents all domain values and they are read and written from smaller to larger numerical values, and from the left of a graph to the right.
Furthermore, the vertical extent of a graph represents all range values and they are always read and written from smaller to larger numerical values, and from the bottom of the graph to the top.
By critically observing the graph shown in the image attached below, we can reasonably and logically deduce the following:
Domain = -6 < x < ∞ or [-6, ∞].
Range = -∞ < y < 0 or [-∞, 0].
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solve for the matrix x if ax(d+bx)−1=c. assume that all matrices are n×n and invertible as needed, you can enter the inverse of a matrix A as A^(-1)
The answer is : [tex]X= (A^{-1} C -B^{-1})D[/tex]
Matrix is an arrangement of numbers into rows and columns. A matrix is a rectangular arrangement of numbers into rows and columns.Matrix is a set of numbers arranged in rows and columns so as to create a rectangular array. The numbers are said entries of the matrix. Matrices have huge applications in engineering, physics, economics, and statistics as well as in various branches of mathematics. Matrices have important applications in computer graphics, where they have been used to represent rotations and other transformations of images.According to the question,
AX [tex](D^{-1} + X^{-1} B^{-1} )[/tex] =C
⇒X[tex](D^{-1} + X^{-1} B^{-1} )[/tex]= [tex]A^{-1} C[/tex]
⇒[tex]XD^{-1} + XX^{-1} B^{-1}[/tex] = [tex]A^{-1} C[/tex]
⇒ [tex]XD^{-1} +B^{-1}[/tex] = [tex]A^{-1} C[/tex]
⇒ [tex]XD^{-1} = A^{-1} C -B^{-1}[/tex]
⇒ [tex]X= (A^{-1} C -B^{-1})D[/tex]
So, the answer is : [tex]X= (A^{-1} C -B^{-1})D[/tex]
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use your trapezoid areas to find an estimate for the total area between the curve and the x-axis. show your work. make sure you include the formula you used for area of a trapezoid, and the lengths and heights of all the trapezoids you added.
The formula for the area of a trapezoid is (a+b)*h/2, where a and b are the lengths of the bases and h is the height.
To estimate the total area between the curve and the x-axis using trapezoids, we can divide the region between the curve and the x-axis into a number of trapezoids, and calculate the area of each trapezoid. The sum of the areas of all the trapezoids will estimate the total area.
For example, consider the curve y = x^2 and the x-axis between x = 1 and x = 2. We can divide this region into 3 trapezoids with bases at x = 1, x = 1.5, x = 2, and heights of 0.25, 0.5625, and 1 respectively.
The area of the first trapezoid is (1 + 1.5) * 0.25 / 2 = 0.1875
The area of the second trapezoid is (1.5 + 2) * 0.5625 / 2 = 0.40625
The area of the third trapezoid is (2 + 2) * 1 / 2 = 1
The sum of the areas of all the trapezoids is 0.1875 + 0.40625 + 1 = 1.60625. This estimates the total area between the curve y = x^2 and the x-axis between x = 1 and x = 2.
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find the exact value of cos -pi/3
The exact value of cos (-pi/3) can be found using the unit circle or the angle addition formula.
Using the unit circle, we know that the x-coordinate of the point on the unit circle that corresponds to an angle of -pi/3 is cos(-pi/3) and y-coordinate is sin(-pi/3).
On the unit circle, the angle of -pi/3 is the same as the angle of 2pi/3 (since the unit circle has a period of 2pi), therefore the x-coordinate of the point on the unit circle that corresponds to an angle of -pi/3 is -1/2.
Alternatively, using the angle addition formula:
cos (-pi/3) = cos(pi - pi/3) = cos(pi) * cos (pi/3) - sin(pi) * sin(pi/3) = -1/2
So, the exact value of cos (-pi/3) is -1/2.
what do you mean logit models
A data set consisting of newborn baby weights is normally distributed (bell-shaped) with a mean of 9.5 pounds
and standard deviation of 1.5 pounds.
Use the Empirical Rule to address the following questions.
Hint: sketch the distribution to help visualize the problem.
Approximately 99.7% of the newborn weights lie between
What approximate percentage of the newborn weights lie between 8 and 11 pounds?
and
What approximate percentage of the newborn weights lie between 6.5 and 12.5 pounds?
These approximate percentages are defined by the Empirical Rule, for a normally distributed variable:
68% of the measures within one standard deviation of the mean.95% of the measures within two standard deviation of the mean.99.7% of the measures within three standard deviation of the mean.More can be learned about the Empirical Rule at brainly.com/question/10093236
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Write the fraction as a mixed number 11 over 4
The answer is 2¾. You can also buy calculators that do this for you automatically.
Answer:
Step-by-step explanation:
2 3/4
If Loretta accidentally recorded a deposit of $47.88 as a debit in her register, by how much will her register differ from the bank statement?
If Loretta accidentally recorded a deposit of $47.88 as a debit in her register, her check register will differ from the bank statement by $0.
How is a deposit recorded in the check registered?A deposit amount is debited to the check register as an asset, increasing the amount the account holder has in the bank.
It is the bank's responsibility to credit the deposit since it is a liability to them, not an asset.
Under accounting principles, assets are debited while liabilities are credited. Loretta's debit entry in her register does not constitute an accounting error under the generally-accepted accounting principles.
Thus, Loretta has not committed an accounting error by recording a deposit of $47.88 as a debit in her register, and her register will not differ from the bank statement for this reason.
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Did I get this right? (pre calc)
The center of the ellipse is (2, -8), The endpoints of the major axis are 10 units from the center, The endpoints of the minor axis are 9 units from the center, To graph the ellipse, connects (2, 2), (11, -8), (2, -18) and (-7, -8) with smooth curve.
What is ellipse?An ellipse in mathematics is a plane curve that has two focal points and is such that the sum of the two distances from any point on the curve to the focal points is a constant. It generalizes a circle, a special kind of ellipse in which the two focal points coincide.
Glven:
The equation of ellipse is,
[tex]\frac{(x-2)^2}{81}+\frac{(x+8)^2}{100}=1[/tex]
SInce, the general form of ellipse is,
[tex]\frac{(x-h)^2}{a^2}+\frac{(y-k)^2}{b^2}=1[/tex]
where,
(h, k) is the center of ellipse
a is the minor axis
b is the major axis.
Here
(h, k) = (2, -8) is the center of the ellipse.
9 is the minor axis and 10 is the major axis of the ellipse.
Also the graph of ellipse connects (2, 2), (11, -8), (2, -18) and (-7, -8) with smooth curve.
Hence, the center of the ellipse is (2, -8).
The endpoints of the major axis are 10 units from the center.
The endpoints of the minor axis are 9 units from the center.
To graph the ellipse, connects (2, 2), (11, -8), (2, -18) and (-7, -8) with smooth curve.
The graph of the ellipse visit.
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If 3x+y+4-(y + 6) = 14 + x, what is the value of x ?
Answer:
x=8
Step-by-step explanation:
Answer:
3x+y+4-(y + 6) = 14 + x
x=8