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86=18+4v
We move all terms to the left:
86-(18+4v)=0
We add all the numbers together, and all the variables
-(4v+18)+86=0
We get rid of parentheses
-4v-18+86=0
We add all the numbers together, and all the variables
-4v+68=0
We move all terms containing v to the left, all other terms to the right
-4v=-68
v=-68/-4
v=+17
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