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8=2v+4v=
We move all terms to the left:
8-(2v+4v)=0
We add all the numbers together, and all the variables
-(+6v)+8=0
We get rid of parentheses
-6v+8=0
We move all terms containing v to the left, all other terms to the right
-6v=-8
v=-8/-6
v=1+1/3
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