Posted by Anonymous on Tuesday, November 2, 2010 at 12:36am.
4n + 8 = 9n-7
4n+8-8=9n-7-8
4n=9n-15
4n-9n=9n-9n-15
-5n=-15
-5n/-5=-15/-5
n=3
15 over 13 as a fraction or .8666666............
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