-2v+9=-v

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Solution for -2v+9=-v equation: 



-2v+9=-v

We move all terms to the left:

-2v+9-(-v)=0

We add all the numbers together, and all the variables

-2v-(-1v)+9=0

We get rid of parentheses

-2v+1v+9=0

We add all the numbers together, and all the variables

-1v+9=0

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

-v=-9

v=-9/-1

v=+9

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