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April 19, 2015

April 19, 2015

Posted by **jackie** on Monday, July 5, 2010 at 5:58pm.

2r - 9s = -17

9r + 2s = 51

- algebra -
**Damon**, Monday, July 5, 2010 at 8:18pm18 r - 81 s = - 153

18 r + 4 s = 102

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0 r - 85 s = - 255

s = 255/85 = 3

now go back and get r

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