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30=2v+8
We move all terms to the left:
30-(2v+8)=0
We get rid of parentheses
-2v-8+30=0
We add all the numbers together, and all the variables
-2v+22=0
We move all terms containing v to the left, all other terms to the right
-2v=-22
v=-22/-2
v=+11
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