Question

Solve for e. g/e^2 - r = m - y

Answer 1

$\bf \cfrac{g}{e^2}-r=m-y\implies \cfrac{g}{e^2}=m-y+r\implies g=e^2(m-y+r) \\\\\\ \cfrac{g}{m-y+r}=e^2\implies \pm\sqrt{\cfrac{g}{m-y+r}}=e$