-12=-2(-5b+2)+7(b-6)

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Solution for -12=-2(-5b+2)+7(b-6) equation: 



-12=-2(-5b+2)+7(b-6)

We move all terms to the left:

-12-(-2(-5b+2)+7(b-6))=0



We calculate terms in parentheses: -(-2(-5b+2)+7(b-6)), so:

-2(-5b+2)+7(b-6)

We multiply parentheses

10b+7b-4-42

We add all the numbers together, and all the variables

17b-46

Back to the equation:

-(17b-46)



We get rid of parentheses

-17b+46-12=0

We add all the numbers together, and all the variables

-17b+34=0

We move all terms containing b to the left, all other terms to the right

-17b=-34

b=-34/-17

b=+2

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