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-v/2=-7
We move all terms to the left:
-v/2-(-7)=0
We add all the numbers together, and all the variables
-v/2+7=0
We multiply all the terms by the denominator
-v+7*2=0
We add all the numbers together, and all the variables
-1v+14=0
We move all terms containing v to the left, all other terms to the right
-v=-14
v=-14/-1
v=+14
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