-387=-9(7+3q)

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Solution for -387=-9(7+3q) equation: 



-387=-9(7+3q)

We move all terms to the left:

-387-(-9(7+3q))=0

We add all the numbers together, and all the variables

-(-9(3q+7))-387=0



We calculate terms in parentheses: -(-9(3q+7)), so:

-9(3q+7)

We multiply parentheses

-27q-63

Back to the equation:

-(-27q-63)



We get rid of parentheses

27q+63-387=0

We add all the numbers together, and all the variables

27q-324=0

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

27q=324

q=324/27

q=12

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