(u-9)*8=72

Solution for (u-9)*8=72 equation:

Simplifying
(u + -9) * 8 = 72

Reorder the terms:
(-9 + u) * 8 = 72

Reorder the terms for easier multiplication:
8(-9 + u) = 72
(-9 * 8 + u * 8) = 72
(-72 + 8u) = 72

Solving
-72 + 8u = 72

Solving for variable 'u'.

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

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

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

Combine like terms: 72 + 72 = 144
8u = 144

Divide each side by '8'.
u = 18

Simplifying
u = 18