-3=3(b+-8)

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Solution for -3=3(b+-8) equation: 



-3=3(b+-8)

We move all terms to the left:

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

We add all the numbers together, and all the variables

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



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

3(b-8)

We multiply parentheses

3b-24

Back to the equation:

-(3b-24)



We get rid of parentheses

-3b+24-3=0

We add all the numbers together, and all the variables

-3b+21=0

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

-3b=-21

b=-21/-3

b=+7

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