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defon
3 years ago
14

What is the x-value in the solution to this equation of linear equations? 2x-y=11 x+3y=-5

Mathematics
2 answers:
saw5 [17]3 years ago
6 0

The solution to these linear equations is (4,-3)

So the x-value is 4

:)))


Otrada [13]3 years ago
6 0

Answer:

x=4

Step-by-step explanation:

To solve this system of equations you just have to multiply the first equation by 3 to eliminate the Y from the equations.

(2x-y=11) 3 = 6x-3y=33

x+3y=-5         x+3y=-5

Now you´ll add both equations:

6x+x=33-5

7x=28

x=\frac{28}{7}

x=4

So the answer to the x-value on this system of equations is 4.

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Write the equation of a line with the slope of -7 and passing through the point (2, 2).​
grandymaker [24]

Answer:

y=-7x+16

Step-by-step explanation:

y-y=m(x-x1)

y-2=-7(x-2)

y-2=-7x+14

+2 +2

y=-7x+16

5 0
3 years ago
Which statement about the following system is correct? y=−2x+5 2x+y=8 Select one: a. The system is inconsistent because the two
faust18 [17]
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3 0
3 years ago
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If (k,6k) and (3k,10k) are two points on the graph of a line and K is not equal to 0, what is the slope of the line?
Nataliya [291]

Answer:

Step-by-step explanation:

slope = y2-y1/x2-x1

Given the coordinates (k,6k) and (3k,10k)

x1 = k

y1 = 6k

x2 = 3k

y2 = 10k

Substitute

slope = 10k-6k/3k-k

slopw = 4k/2k

slope = 4/2

slope  = 2

Hence the slope of the line is 2

7 0
3 years ago
Linda found that the cost to get a swimming pool installed in her backyard is a linear function of the pool's area. A swimming p
joja [24]

Answer:

$35,000

Step-by-step explanation:

if $50,000 is to install an area of 1,000 square feet swimming pool and $35,000 can be used to install an 800 square foot swimming pool I think the best graph model is 800 square feet for $35,000 for a cost cut of $15,000 is a good bargain

7 0
3 years ago
Find the solution of this system of equations.
vagabundo [1.1K]
I'm going to use the substitution method.

4x + 4y = -16
-8x - 6y = -20

4x + 4y = -16
- 4x - 4x
--------------------------
4y = -4x - 16
------ ------ ------
4 4 4

y = -x - 4

-8x - 6(-x - 4) = -20
-8x + 6x + 24 = -20
-2x + 24 = -20
- 24 - 24
----------------------------
-2x = 44
------- -------
2 2

x = 22


4(22) + 4y = -16
88 + 4y = -16
- 88 - 88
------------------------
4y = -104
------ ---------
4 4

y = -26



The answer is (22, -26).



4 0
3 years ago
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