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2=18-2q
We move all terms to the left:
2-(18-2q)=0
We add all the numbers together, and all the variables
-(-2q+18)+2=0
We get rid of parentheses
2q-18+2=0
We add all the numbers together, and all the variables
2q-16=0
We move all terms containing q to the left, all other terms to the right
2q=16
q=16/2
q=8
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