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2/1=v/4
We move all terms to the left:
2/1-(v/4)=0
We add all the numbers together, and all the variables
-(+v/4)+2/1=0
We add all the numbers together, and all the variables
-(+v/4)=0
We get rid of parentheses
-v/4=0
We multiply all the terms by the denominator
-v=0
v=0/-1
v=0
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