8*9=u

Solution for 8*9=u equation:

Simplifying
8 * 9 = u

Multiply 8 * 9
72 = u

Solving
72 = u

Solving for variable 'u'.

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

Add '-1u' to each side of the equation.
72 + -1u = u + -1u

Combine like terms: u + -1u = 0
72 + -1u = 0

Add '-72' to each side of the equation.
72 + -72 + -1u = 0 + -72

Combine like terms: 72 + -72 = 0
0 + -1u = 0 + -72
-1u = 0 + -72

Combine like terms: 0 + -72 = -72
-1u = -72

Divide each side by '-1'.
u = 72

Simplifying
u = 72