Posted by Heaven on Wednesday, February 15, 2012 at 6:50pm.
subtract 7n to the other side
AND subtract 13 to the other side
and also divide 3 to the other side,so
7n-5=10n+13
-5=10n-7n +13
-5-13=10n-7n
-18=3n
n=-6
Add 5 to both side
7n=10n+18
Then subtract 10n
-3n=18
Finally divide -3 on both sides
n=-6
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