8b+4=4(1b-7)

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Solution for 8b+4=4(1b-7) equation: 



8b+4=4(1b-7)

We move all terms to the left:

8b+4-(4(1b-7))=0

We add all the numbers together, and all the variables

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



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

4(b-7)

We multiply parentheses

4b-28

Back to the equation:

-(4b-28)



We get rid of parentheses

8b-4b+28+4=0

We add all the numbers together, and all the variables

4b+32=0

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

4b=-32

b=-32/4

b=-8

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