7=-1-2v

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Solution for 7=-1-2v equation: 



7=-1-2v

We move all terms to the left:

7-(-1-2v)=0

We add all the numbers together, and all the variables

-(-2v-1)+7=0

We get rid of parentheses

2v+1+7=0

We add all the numbers together, and all the variables

2v+8=0

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

2v=-8

v=-8/2

v=-4

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