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February 27, 2015

February 27, 2015

Posted by **Michelle** on Tuesday, July 13, 2010 at 7:24pm.

1)

5x+5y=-11

7x-2y=17

- math -
**Reiny**, Tuesday, July 13, 2010 at 8:03pmhint:

multiply the first by 2

the second by 5, then add them

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