-9-4b=-7(6-b)

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Solution for -9-4b=-7(6-b) equation: 



-9-4b=-7(6-b)

We move all terms to the left:

-9-4b-(-7(6-b))=0

We add all the numbers together, and all the variables

-4b-(-7(-1b+6))-9=0



We calculate terms in parentheses: -(-7(-1b+6)), so:

-7(-1b+6)

We multiply parentheses

7b-42

Back to the equation:

-(7b-42)



We get rid of parentheses

-4b-7b+42-9=0

We add all the numbers together, and all the variables

-11b+33=0

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

-11b=-33

b=-33/-11

b=+3

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