Solve for x. (x - 3)^4/3 = 81

I need help solving please.

Like step by step.

Assuming you mean (x - 3)^(4/3) = 81,
(x - 3)^4/3 = 81
((x - 3)^(4/3))^(3/4) = 81^(3/4)
x - 3 = (81^(1/4))^3
x - 3 = 3^3
x - 3 = 27
x = 30