21=5-6v-2v

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Solution for 21=5-6v-2v equation: 



21=5-6v-2v

We move all terms to the left:

21-(5-6v-2v)=0

We add all the numbers together, and all the variables

-(-8v+5)+21=0

We get rid of parentheses

8v-5+21=0

We add all the numbers together, and all the variables

8v+16=0

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

8v=-16

v=-16/8

v=-2

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