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2v+18=30+v
We move all terms to the left:
2v+18-(30+v)=0
We add all the numbers together, and all the variables
2v-(v+30)+18=0
We get rid of parentheses
2v-v-30+18=0
We add all the numbers together, and all the variables
v-12=0
We move all terms containing v to the left, all other terms to the right
v=12
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