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January 31, 2015

January 31, 2015

Posted by **Steve** on Wednesday, December 18, 2013 at 8:42pm.

8x + 5y = -91

3x + y = -21

- Math -
**Kuai**, Wednesday, December 18, 2013 at 9:32pm8x + 5y = -91

3x + y = -21

8x = 5y = -91

-15x -5y = 105

-7x = 14

x = -2

y = -15

(-2, -15)

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