shellingkovlt83 shellingkovlt83
  • 10-01-2018
  • Mathematics
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What is the x-coordinate of the solution for the system of equations?

{y−x=9
10+2x=−2y

Enter your answer in the box.

x =

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meredith48034
meredith48034 meredith48034
  • 10-01-2018
2x+2y=-10
-x+y. = 9

2x + 2y = -10
-2x + 2y = 18

4y = 8

y= 2

2 - x = 9

-x = 7

x = -7
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