-9=3(b+9)-9

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Solution for -9=3(b+9)-9 equation: 



-9=3(b+9)-9

We move all terms to the left:

-9-(3(b+9)-9)=0



We calculate terms in parentheses: -(3(b+9)-9), so:

3(b+9)-9

We multiply parentheses

3b+27-9

We add all the numbers together, and all the variables

3b+18

Back to the equation:

-(3b+18)



We get rid of parentheses

-3b-18-9=0

We add all the numbers together, and all the variables

-3b-27=0

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

-3b=27

b=27/-3

b=-9

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