12-q+7=-2

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Solution for 12-q+7=-2 equation: 



12-q+7=-2

We move all terms to the left:

12-q+7-(-2)=0

We add all the numbers together, and all the variables

-1q+21=0

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

-q=-21

q=-21/-1

q=+21

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