Answer
$\frac{-3}{(a-2)}$=$\frac{3}{2-a}$
Work Step by Step
$\frac{-1}{a-2}$+$\frac{4}{4-2a}$=
$\frac{-1}{a-2}$+$\frac{4}{2(2-a)}$=
$\frac{2(-1)}{2(a-2)}$+$\frac{(-1)4}{(-1)(2)(2-a)}$=
$\frac{-2}{2(a-2)}$-$\frac{4}{2(a-2)}$=
$\frac{-2-4}{2(a-2)}$=$\frac{-6}{2(a-2)}$=
$\frac{-3}{(a-2)}$
