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-2v+7(v+7)=34
We move all terms to the left:
-2v+7(v+7)-(34)=0
We multiply parentheses
-2v+7v+49-34=0
We add all the numbers together, and all the variables
5v+15=0
We move all terms containing v to the left, all other terms to the right
5v=-15
v=-15/5
v=-3
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