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July 30, 2015

Homework Help: Pre-Algebra

Posted by Stephanie on Wednesday, November 19, 2008 at 9:50pm.

13 - t = -t + 7
(13 - t) - 13 = (-t +7) -13
-t = -t - 6
-t + t = (-t - 6) + t
0 = -6

This makes no sense to me..
What is the answer to the problem
13 - t = -t + 7

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