-63=-(7-2b)+4(-5+4b)

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Solution for -63=-(7-2b)+4(-5+4b) equation: 



-63=-(7-2b)+4(-5+4b)

We move all terms to the left:

-63-(-(7-2b)+4(-5+4b))=0

We add all the numbers together, and all the variables

-(-(-2b+7)+4(4b-5))-63=0



We calculate terms in parentheses: -(-(-2b+7)+4(4b-5)), so:

-(-2b+7)+4(4b-5)

We multiply parentheses

-(-2b+7)+16b-20

We get rid of parentheses

2b+16b-7-20

We add all the numbers together, and all the variables

18b-27

Back to the equation:

-(18b-27)



We get rid of parentheses

-18b+27-63=0

We add all the numbers together, and all the variables

-18b-36=0

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

-18b=36

b=36/-18

b=-2

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