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irinina [24]
3 years ago
11

What is the x-coordinate of the solution of the following system of equations?

Mathematics
1 answer:
Varvara68 [4.7K]3 years ago
8 0

The easiest way to solve this is by elimination. 

3x - y = 6 

6x + y = 21

Since you have a negative and positive y with the same coefficients (1), they cancel, and you add the other terms so it would look like:

9x = 27 

Then solving for x leaves you with x = 3 

Then you take the x value of three and plug it into to either of the equations, so 

3(3) - y = 6

9 - y = 6 

subtracting 9 

-y = -3 

then dividing by -1 

y = 3 

so the solution is x = 3 y = 3 or (3,3)

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Answer:

Step-by-step explanation:

Absolute Change = final change in 2017 sales  - initial change in 2016 sales  =  $847,000,000 - $885,100,000 = 38,100,000

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4^3-(84÷14)^2<br><br> Please help! Show work too! thank you!! &lt;3
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Answer:

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Step-by-step explanation:

4^{3}-(84\div14)^{2}

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Answer:

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