-128=-8b-4(3b-8)

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Solution for -128=-8b-4(3b-8) equation: 



-128=-8b-4(3b-8)

We move all terms to the left:

-128-(-8b-4(3b-8))=0



We calculate terms in parentheses: -(-8b-4(3b-8)), so:

-8b-4(3b-8)

We multiply parentheses

-8b-12b+32

We add all the numbers together, and all the variables

-20b+32

Back to the equation:

-(-20b+32)



We get rid of parentheses

20b-32-128=0

We add all the numbers together, and all the variables

20b-160=0

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

20b=160

b=160/20

b=8

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