9*8=u-3

Solution for 9*8=u-3 equation:

Simplifying
9 * 8 = u + -3

Multiply 9 * 8
72 = u + -3

Reorder the terms:
72 = -3 + u

Solving
72 = -3 + 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 = -3 + u + -1u

Combine like terms: u + -1u = 0
72 + -1u = -3 + 0
72 + -1u = -3

Add '-72' to each side of the equation.
72 + -72 + -1u = -3 + -72

Combine like terms: 72 + -72 = 0
0 + -1u = -3 + -72
-1u = -3 + -72

Combine like terms: -3 + -72 = -75
-1u = -75

Divide each side by '-1'.
u = 75

Simplifying
u = 75