-31=3v+9-8v=

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Solution for -31=3v+9-8v= equation: 



-31=3v+9-8v=

We move all terms to the left:

-31-(3v+9-8v)=0

We add all the numbers together, and all the variables

-(-5v+9)-31=0

We get rid of parentheses

5v-9-31=0

We add all the numbers together, and all the variables

5v-40=0

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

5v=40

v=40/5

v=8

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