147=3-12b

Solution for 147=3-12b equation:

Simplifying
147 = 3 + -12b

Solving
147 = 3 + -12b

Solving for variable 'b'.

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

Add '12b' to each side of the equation.
147 + 12b = 3 + -12b + 12b

Combine like terms: -12b + 12b = 0
147 + 12b = 3 + 0
147 + 12b = 3

Add '-147' to each side of the equation.
147 + -147 + 12b = 3 + -147

Combine like terms: 147 + -147 = 0
0 + 12b = 3 + -147
12b = 3 + -147

Combine like terms: 3 + -147 = -144
12b = -144

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

Simplifying
b = -12