7b-39=3(5b-5)

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Solution for 7b-39=3(5b-5) equation: 



7b-39=3(5b-5)

We move all terms to the left:

7b-39-(3(5b-5))=0



We calculate terms in parentheses: -(3(5b-5)), so:

3(5b-5)

We multiply parentheses

15b-15

Back to the equation:

-(15b-15)



We get rid of parentheses

7b-15b+15-39=0

We add all the numbers together, and all the variables

-8b-24=0

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

-8b=24

b=24/-8

b=-3

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