-256=8(3-7b)

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Solution for -256=8(3-7b) equation: 



-256=8(3-7b)

We move all terms to the left:

-256-(8(3-7b))=0

We add all the numbers together, and all the variables

-(8(-7b+3))-256=0



We calculate terms in parentheses: -(8(-7b+3)), so:

8(-7b+3)

We multiply parentheses

-56b+24

Back to the equation:

-(-56b+24)



We get rid of parentheses

56b-24-256=0

We add all the numbers together, and all the variables

56b-280=0

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

56b=280

b=280/56

b=5

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