12=-3(q-18)

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Solution for 12=-3(q-18) equation: 



12=-3(q-18)

We move all terms to the left:

12-(-3(q-18))=0



We calculate terms in parentheses: -(-3(q-18)), so:

-3(q-18)

We multiply parentheses

-3q+54

Back to the equation:

-(-3q+54)



We get rid of parentheses

3q-54+12=0

We add all the numbers together, and all the variables

3q-42=0

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

3q=42

q=42/3

q=14

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