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-2v+29=9v-81
We move all terms to the left:
-2v+29-(9v-81)=0
We get rid of parentheses
-2v-9v+81+29=0
We add all the numbers together, and all the variables
-11v+110=0
We move all terms containing v to the left, all other terms to the right
-11v=-110
v=-110/-11
v=+10
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