1b-3b=12

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Solution for 1b-3b=12 equation: 


Simplifying
1b + -3b = 12

Combine like terms: 1b + -3b = -2b
-2b = 12

Solving
-2b = 12

Solving for variable 'b'.

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

Divide each side by '-2'.
b = -6

Simplifying
b = -6

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