18=9(-6+b)

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Solution for 18=9(-6+b) equation: 



18=9(-6+b)

We move all terms to the left:

18-(9(-6+b))=0

We add all the numbers together, and all the variables

-(9(b-6))+18=0



We calculate terms in parentheses: -(9(b-6)), so:

9(b-6)

We multiply parentheses

9b-54

Back to the equation:

-(9b-54)



We get rid of parentheses

-9b+54+18=0

We add all the numbers together, and all the variables

-9b+72=0

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

-9b=-72

b=-72/-9

b=+8

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