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October 24, 2014

Homework Help: math

Posted by JR on Thursday, October 11, 2012 at 3:23am.

JUSTIFIES A STEP IN THE SOLUTION OF AN EQUATION
4n+(7+n)=52
4n+(n+7)=52
(4n+n)+7=52
5n+7=52
5n+7-7=52
5n=45
5n/5=45/9
n=9

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