15-12b=129

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Solution for 15-12b=129 equation: 


Simplifying
15 + -12b = 129

Solving
15 + -12b = 129

Solving for variable 'b'.

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

Add '-15' to each side of the equation.
15 + -15 + -12b = 129 + -15

Combine like terms: 15 + -15 = 0
0 + -12b = 129 + -15
-12b = 129 + -15

Combine like terms: 129 + -15 = 114
-12b = 114

Divide each side by '-12'.
b = -9.5

Simplifying
b = -9.5

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