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April 19, 2014

April 19, 2014

Posted by **Denise** on Thursday, July 25, 2013 at 3:08pm.

x-y=13 y=

- Math -
**Ms. Sue**, Thursday, July 25, 2013 at 3:42pm4x+y=7 y=

x-y=13 y=

5x = 20

x = 4

16 + y = 7

y = - 9

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