4=2v-4v

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Solution for 4=2v-4v equation: 



4=2v-4v

We move all terms to the left:

4-(2v-4v)=0

We add all the numbers together, and all the variables

-(-2v)+4=0

We get rid of parentheses

2v+4=0

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

2v=-4

v=-4/2

v=-2

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