Solve for n?

1/(n+7) – (2n-1)/(4n^2+31n+21) = 1/(4n+3).

I got 5, but I think I did the wrong thing to the 31n.

Any help would be appreciated, thanks in advance.

Top 1 Answers

A few days ago

Ed S

Favorite Answer

Factor the quadratic. The common denominator is (4n+3)(n+7).

Multiply each term by the common denominator and cancel.

You should get (4n+3)-(2n-1)=n+7

Work that out for n. n=3

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