b-12=30

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Solution for b-12=30 equation: 


Simplifying
b + -12 = 30

Reorder the terms:
-12 + b = 30

Solving
-12 + b = 30

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 = 30 + 12

Combine like terms: -12 + 12 = 0
0 + b = 30 + 12
b = 30 + 12

Combine like terms: 30 + 12 = 42
b = 42

Simplifying
b = 42

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