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10v-81=2v+7
We move all terms to the left:
10v-81-(2v+7)=0
We get rid of parentheses
10v-2v-7-81=0
We add all the numbers together, and all the variables
8v-88=0
We move all terms containing v to the left, all other terms to the right
8v=88
v=88/8
v=11
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