-q-3=9

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Solution for -q-3=9 equation: 



-q-3=9

We move all terms to the left:

-q-3-(9)=0

We add all the numbers together, and all the variables

-1q-12=0

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

-q=12

q=12/-1

q=-12

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