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12=2v+14
We move all terms to the left:
12-(2v+14)=0
We get rid of parentheses
-2v-14+12=0
We add all the numbers together, and all the variables
-2v-2=0
We move all terms containing v to the left, all other terms to the right
-2v=2
v=2/-2
v=-1
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