42=4(-3+4b)-(6b+6)

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Solution for 42=4(-3+4b)-(6b+6) equation: 



42=4(-3+4b)-(6b+6)

We move all terms to the left:

42-(4(-3+4b)-(6b+6))=0

We add all the numbers together, and all the variables

-(4(4b-3)-(6b+6))+42=0



We calculate terms in parentheses: -(4(4b-3)-(6b+6)), so:

4(4b-3)-(6b+6)

We multiply parentheses

16b-(6b+6)-12

We get rid of parentheses

16b-6b-6-12

We add all the numbers together, and all the variables

10b-18

Back to the equation:

-(10b-18)



We get rid of parentheses

-10b+18+42=0

We add all the numbers together, and all the variables

-10b+60=0

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

-10b=-60

b=-60/-10

b=+6

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