72=9b

Solution for 72=9b equation:

Simplifying
72 = 9b

Solving
72 = 9b

Solving for variable 'b'.

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

Add '-9b' to each side of the equation.
72 + -9b = 9b + -9b

Combine like terms: 9b + -9b = 0
72 + -9b = 0

Add '-72' to each side of the equation.
72 + -72 + -9b = 0 + -72

Combine like terms: 72 + -72 = 0
0 + -9b = 0 + -72
-9b = 0 + -72

Combine like terms: 0 + -72 = -72
-9b = -72

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

Simplifying
b = 8