18=7+8(b-9)

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Solution for 18=7+8(b-9) equation: 



18=7+8(b-9)

We move all terms to the left:

18-(7+8(b-9))=0



We calculate terms in parentheses: -(7+8(b-9)), so:

7+8(b-9)

determiningTheFunctionDomain
8(b-9)+7

We multiply parentheses

8b-72+7

We add all the numbers together, and all the variables

8b-65

Back to the equation:

-(8b-65)



We get rid of parentheses

-8b+65+18=0

We add all the numbers together, and all the variables

-8b+83=0

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

-8b=-83

b=-83/-8

b=10+3/8

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