-(b-7)=2b+28

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Solution for -(b-7)=2b+28 equation: 



-(b-7)=2b+28

We move all terms to the left:

-(b-7)-(2b+28)=0

We get rid of parentheses

-b-2b+7-28=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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