-64=4b-4(-2b+4)

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Solution for -64=4b-4(-2b+4) equation: 



-64=4b-4(-2b+4)

We move all terms to the left:

-64-(4b-4(-2b+4))=0



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

4b-4(-2b+4)

We multiply parentheses

4b+8b-16

We add all the numbers together, and all the variables

12b-16

Back to the equation:

-(12b-16)



We get rid of parentheses

-12b+16-64=0

We add all the numbers together, and all the variables

-12b-48=0

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

-12b=48

b=48/-12

b=-4

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