-v-9=5v-21

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Solution for -v-9=5v-21 equation: 



-v-9=5v-21

We move all terms to the left:

-v-9-(5v-21)=0

We add all the numbers together, and all the variables

-1v-(5v-21)-9=0

We get rid of parentheses

-1v-5v+21-9=0

We add all the numbers together, and all the variables

-6v+12=0

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

-6v=-12

v=-12/-6

v=+2

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