-4b+12=40

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Solution for -4b+12=40 equation: 


Simplifying
-4b + 12 = 40

Reorder the terms:
12 + -4b = 40

Solving
12 + -4b = 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 + -4b = 40 + -12

Combine like terms: 12 + -12 = 0
0 + -4b = 40 + -12
-4b = 40 + -12

Combine like terms: 40 + -12 = 28
-4b = 28

Divide each side by '-4'.
b = -7

Simplifying
b = -7

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