Question

1/4 - 1/2r = - 3/4r how do I solve this please help.......

Answer 1

$\frac{1}{4}^{(r}-\frac{1}{2r}^{(2}=-\frac{3}{4r} \\\\ r-2=-3 \\\\ r=-3+2 \\\\ \boxed{r=-1}$