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July 23, 2014

July 23, 2014

Posted by **Katie** on Tuesday, September 27, 2011 at 4:22pm.

- math -
**Ms. Sue**, Tuesday, September 27, 2011 at 4:33pmLet x = the second book.

x + x + 30 = 170

2x = 170 - 30

x = 140/2

x = ?

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