-21=7/3v

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Solution for -21=7/3v equation: 



-21=7/3v

We move all terms to the left:

-21-(7/3v)=0



Domain of the equation: 3v)!=0

v!=0/1

v!=0

v∈R



We add all the numbers together, and all the variables

-(+7/3v)-21=0

We get rid of parentheses

-7/3v-21=0

We multiply all the terms by the denominator


-21*3v-7=0

Wy multiply elements

-63v-7=0

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

-63v=7

v=7/-63

v=-1/9

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