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4=v*340
We move all terms to the left:
4-(v*340)=0
We add all the numbers together, and all the variables
-(+v*340)+4=0
We get rid of parentheses
-v*340+4=0
Wy multiply elements
-340v+4=0
We move all terms containing v to the left, all other terms to the right
-340v=-4
v=-4/-340
v=1/85
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