SOLUTION: 231=7(x+8)x

Question 746091: 231=7(x+8)x
Answer by tommyt3rd(5050) (Show Source): You can put this solution on YOUR website!
231=7(x+8)x
the 231 seems large, so we look for a way to simplify - and it turns out to be a multiple of 7:

using cancellation and rearranging terms we get the following:

Notice that 11+(-3)=8 and (11)(-3)=-33 so we'll use them in our grouping:

which has solutions

x=3 and x=-11

:)
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