12/v=21

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Solution for 12/v=21 equation: 



12/v=21

We move all terms to the left:

12/v-(21)=0



Domain of the equation: v!=0

v∈R



We multiply all the terms by the denominator


-21*v+12=0

We add all the numbers together, and all the variables

-21v+12=0

We move all terms containing v to the left, all other terms to the right

-21v=-12

v=-12/-21

v=4/7

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