18=-3(q+3)

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Solution for 18=-3(q+3) equation: 



18=-3(q+3)

We move all terms to the left:

18-(-3(q+3))=0



We calculate terms in parentheses: -(-3(q+3)), so:

-3(q+3)

We multiply parentheses

-3q-9

Back to the equation:

-(-3q-9)



We get rid of parentheses

3q+9+18=0

We add all the numbers together, and all the variables

3q+27=0

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

3q=-27

q=-27/3

q=-9

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