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-12-4v=4-2v
We move all terms to the left:
-12-4v-(4-2v)=0
We add all the numbers together, and all the variables
-4v-(-2v+4)-12=0
We get rid of parentheses
-4v+2v-4-12=0
We add all the numbers together, and all the variables
-2v-16=0
We move all terms containing v to the left, all other terms to the right
-2v=16
v=16/-2
v=-8
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