9(b-1)=27

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Solution for 9(b-1)=27 equation: 



9(b-1)=27

We move all terms to the left:

9(b-1)-(27)=0

We multiply parentheses

9b-9-27=0

We add all the numbers together, and all the variables

9b-36=0

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

9b=36

b=36/9

b=4

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