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​use the system to answer the question

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use the system to answer the question 

2x-3y=-27 

-3x+2y=23 

What is x-coordinate of the solution to the system?

Mar 21st, 2015

2x - 3y = - 27 

- 3x + 2y = 23 

Now

6x - 9y = - 81

- 6x + 4y = 46
------------------
- 5y = - 35

y = 7

Now 

2x - 3(7) = - 27

2x - 21 = - 27

2x = - 27 + 21

2x = - 6

x = -3


Mar 21st, 2015

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Mar 21st, 2015
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