-b+(b+7)=27-2b

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Solution for -b+(b+7)=27-2b equation: 



-b+(b+7)=27-2b

We move all terms to the left:

-b+(b+7)-(27-2b)=0

We add all the numbers together, and all the variables

-b+(b+7)-(-2b+27)=0

We add all the numbers together, and all the variables

-1b+(b+7)-(-2b+27)=0

We get rid of parentheses

-1b+b+2b+7-27=0

We add all the numbers together, and all the variables

2b-20=0

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

2b=20

b=20/2

b=10

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