b-12=-40

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Solution for b-12=-40 equation: 


Simplifying
b + -12 = -40

Reorder the terms:
-12 + b = -40

Solving
-12 + b = -40

Solving for variable 'b'.

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

Add '12' to each side of the equation.
-12 + 12 + b = -40 + 12

Combine like terms: -12 + 12 = 0
0 + b = -40 + 12
b = -40 + 12

Combine like terms: -40 + 12 = -28
b = -28

Simplifying
b = -28

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