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80/v=2
We move all terms to the left:
80/v-(2)=0
Domain of the equation: v!=0We multiply all the terms by the denominator
v∈R
-2*v+80=0
We add all the numbers together, and all the variables
-2v+80=0
We move all terms containing v to the left, all other terms to the right
-2v=-80
v=-80/-2
v=+40
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