12=-b+7

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Solution for 12=-b+7 equation:


Simplifying
12 = -1b + 7

Reorder the terms:
12 = 7 + -1b

Solving
12 = 7 + -1b

Solving for variable 'b'.

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

Add 'b' to each side of the equation.
12 + b = 7 + -1b + b

Combine like terms: -1b + b = 0
12 + b = 7 + 0
12 + b = 7

Add '-12' to each side of the equation.
12 + -12 + b = 7 + -12

Combine like terms: 12 + -12 = 0
0 + b = 7 + -12
b = 7 + -12

Combine like terms: 7 + -12 = -5
b = -5

Simplifying
b = -5

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