Question

Solve:
(w)/4=(9)/w

Answer 1

(w)/4=(9)/w
multiply both sides by w
(w^2) /4 = 9
multiply both sides by 4
w^2 = 36
w^2 = 6^2
w =-6 or w= 6

Answer 2

cross multiply and take square root on both sides. you should get +or-some number