72-5u=3u

Solution for 72-5u=3u equation:

Simplifying
72 + -5u = 3u

Solving
72 + -5u = 3u

Solving for variable 'u'.

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

Add '-3u' to each side of the equation.
72 + -5u + -3u = 3u + -3u

Combine like terms: -5u + -3u = -8u
72 + -8u = 3u + -3u

Combine like terms: 3u + -3u = 0
72 + -8u = 0

Add '-72' to each side of the equation.
72 + -72 + -8u = 0 + -72

Combine like terms: 72 + -72 = 0
0 + -8u = 0 + -72
-8u = 0 + -72

Combine like terms: 0 + -72 = -72
-8u = -72

Divide each side by '-8'.
u = 9

Simplifying
u = 9