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q/7+12=13
We move all terms to the left:
q/7+12-(13)=0
We add all the numbers together, and all the variables
q/7-1=0
We multiply all the terms by the denominator
q-1*7=0
We add all the numbers together, and all the variables
q-7=0
We move all terms containing q to the left, all other terms to the right
q=7
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