21=3/5v

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Solution for 21=3/5v equation: 



21=3/5v

We move all terms to the left:

21-(3/5v)=0



Domain of the equation: 5v)!=0

v!=0/1

v!=0

v∈R



We add all the numbers together, and all the variables

-(+3/5v)+21=0

We get rid of parentheses

-3/5v+21=0

We multiply all the terms by the denominator


21*5v-3=0

Wy multiply elements

105v-3=0

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

105v=3

v=3/105

v=1/35

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