Answer:
sqrt(g/(m-y+r)) =e
Step-by-step explanation:
g/e^2 -r =m-y
Add r to each side
g/e^2 -r+r =m-y+r
g/e^2 =m-y+r
Multiply by e^2 on each side
g/e^2 *e^2 =(m-y+r)*e^2
g = (m-y+r)*e^2
Divide by (m-y+r)
g/(m-y+r) = e^2
Take the square root on each side
sqrt(g/(m-y+r)) =sqrt( e^2)
sqrt(g/(m-y+r)) =e
