124=4(7-8b)

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Solution for 124=4(7-8b) equation: 



124=4(7-8b)

We move all terms to the left:

124-(4(7-8b))=0

We add all the numbers together, and all the variables

-(4(-8b+7))+124=0



We calculate terms in parentheses: -(4(-8b+7)), so:

4(-8b+7)

We multiply parentheses

-32b+28

Back to the equation:

-(-32b+28)



We get rid of parentheses

32b-28+124=0

We add all the numbers together, and all the variables

32b+96=0

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

32b=-96

b=-96/32

b=-3

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