Question

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Answer 1

Do the opposites and Combine like terms:
(N+1)-2N/(N+4)-----> (N+1)+(-2N)/(N+4)

N+ -2N= -1N, which then get's turned into 0. The equation gets turned into 1=N+4

You aren't done yet.
You have to subtract the 4 on the right from the left side of the equation. When you are done with this you get -3=N.

Hope this helped!

Answer 2

Thanks mate, yeah it did!