Solve for nnn: nn−4−n+2n+3=15n2−n−12\frac{n}{n-4} - \frac{n+2}{n+3} = \frac{15}{n^2-n-12}n−4n−n+3n+2=n2−n−1215.
n=3n=3n=3
n=−3n=-3n=−3
n=2n=2n=2
n=−2n=-2n=−2