u=(120+u)0.72

Solution for u=(120+u)0.72 equation:

Simplifying
u = (120 + u) * 0.72

Reorder the terms for easier multiplication:
u = 0.72(120 + u)
u = (120 * 0.72 + u * 0.72)
u = (86.4 + 0.72u)

Solving
u = 86.4 + 0.72u

Solving for variable 'u'.

Move all terms containing u to the left, all other terms to the right.

Add '-0.72u' to each side of the equation.
u + -0.72u = 86.4 + 0.72u + -0.72u

Combine like terms: u + -0.72u = 0.28u
0.28u = 86.4 + 0.72u + -0.72u

Combine like terms: 0.72u + -0.72u = 0.00
0.28u = 86.4 + 0.00
0.28u = 86.4

Divide each side by '0.28'.
u = 308.5714286

Simplifying
u = 308.5714286