72=8*b

Solution for 72=8*b equation:

Simplifying
72 = 8b

Solving
72 = 8b

Solving for variable 'b'.

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

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

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

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

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

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

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

Simplifying
b = 9