3=v+7

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Solution for 3=v+7 equation: 



3=v+7

We move all terms to the left:

3-(v+7)=0

We get rid of parentheses

-v-7+3=0

We add all the numbers together, and all the variables

-1v-4=0

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

-v=4

v=4/-1

v=-4

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