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October 20, 2014

October 20, 2014

Posted by **hunter** on Thursday, July 4, 2013 at 12:30pm.

10x - 6y = -16

5x + 2y = 22

- math 3 -
**MathMate**, Thursday, July 4, 2013 at 1:16pmAdd three times the second equation to the first to get:

(10+15)x=-16+66

25x = 50

x=2

Substitute x=2 into the second equation to get:

5(2)+2y=22

2y=22-10=12

y=6

Now substitute x=2 and y=6 into the first equation to check solution

10(2)-6(6)=-16 so solution is correct.

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