92-20=9h

Solution for 92-20=9h equation:

Simplifying
92 + -20 = 9h

Combine like terms: 92 + -20 = 72
72 = 9h

Solving
72 = 9h

Solving for variable 'h'.

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

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

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

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

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

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

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

Simplifying
h = 8