18=2(q-9)

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Solution for 18=2(q-9) equation: 



18=2(q-9)

We move all terms to the left:

18-(2(q-9))=0



We calculate terms in parentheses: -(2(q-9)), so:

2(q-9)

We multiply parentheses

2q-18

Back to the equation:

-(2q-18)



We get rid of parentheses

-2q+18+18=0

We add all the numbers together, and all the variables

-2q+36=0

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

-2q=-36

q=-36/-2

q=+18

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