31=-4+5v

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Solution for 31=-4+5v equation: 



31=-4+5v

We move all terms to the left:

31-(-4+5v)=0

We add all the numbers together, and all the variables

-(5v-4)+31=0

We get rid of parentheses

-5v+4+31=0

We add all the numbers together, and all the variables

-5v+35=0

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

-5v=-35

v=-35/-5

v=+7

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