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100=7v+2
We move all terms to the left:
100-(7v+2)=0
We get rid of parentheses
-7v-2+100=0
We add all the numbers together, and all the variables
-7v+98=0
We move all terms containing v to the left, all other terms to the right
-7v=-98
v=-98/-7
v=+14
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