b+7=9-12

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Solution for b+7=9-12 equation:


Simplifying
b + 7 = 9 + -12

Reorder the terms:
7 + b = 9 + -12

Combine like terms: 9 + -12 = -3
7 + b = -3

Solving
7 + b = -3

Solving for variable 'b'.

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

Add '-7' to each side of the equation.
7 + -7 + b = -3 + -7

Combine like terms: 7 + -7 = 0
0 + b = -3 + -7
b = -3 + -7

Combine like terms: -3 + -7 = -10
b = -10

Simplifying
b = -10

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