129-11=8b

Solution for 129-11=8b equation:

Simplifying
129 + -11 = 8b

Combine like terms: 129 + -11 = 118
118 = 8b

Solving
118 = 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.
118 + -8b = 8b + -8b

Combine like terms: 8b + -8b = 0
118 + -8b = 0

Add '-118' to each side of the equation.
118 + -118 + -8b = 0 + -118

Combine like terms: 118 + -118 = 0
0 + -8b = 0 + -118
-8b = 0 + -118

Combine like terms: 0 + -118 = -118
-8b = -118

Divide each side by '-8'.
b = 14.75

Simplifying
b = 14.75