12-2b=-3(b-4)

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Solution for 12-2b=-3(b-4) equation: 



12-2b=-3(b-4)

We move all terms to the left:

12-2b-(-3(b-4))=0



We calculate terms in parentheses: -(-3(b-4)), so:

-3(b-4)

We multiply parentheses

-3b+12

Back to the equation:

-(-3b+12)



We get rid of parentheses

-2b+3b-12+12=0

We add all the numbers together, and all the variables

b=0

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