-3=q+15

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Solution for -3=q+15 equation: 



-3=q+15

We move all terms to the left:

-3-(q+15)=0

We get rid of parentheses

-q-15-3=0

We add all the numbers together, and all the variables

-1q-18=0

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

-q=18

q=18/-1

q=-18

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