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July 25, 2014

July 25, 2014

Posted by **Shirley** on Sunday, February 5, 2012 at 7:19pm.

-3x – 5y = 61

7x – 5y = -9

- math -
**PsyDAG**, Monday, February 6, 2012 at 10:18amSubtract the second equation from the first.

-10x = 70

x = 70/-10 = -7

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