-27=-5(b-9)-b

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Solution for -27=-5(b-9)-b equation: 



-27=-5(b-9)-b

We move all terms to the left:

-27-(-5(b-9)-b)=0



We calculate terms in parentheses: -(-5(b-9)-b), so:

-5(b-9)-b

We add all the numbers together, and all the variables

-1b-5(b-9)

We multiply parentheses

-1b-5b+45

We add all the numbers together, and all the variables

-6b+45

Back to the equation:

-(-6b+45)



We get rid of parentheses

6b-45-27=0

We add all the numbers together, and all the variables

6b-72=0

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

6b=72

b=72/6

b=12

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