1-(-2v)=-7

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Solution for 1-(-2v)=-7 equation: 



1-(-2v)=-7

We move all terms to the left:

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

We add all the numbers together, and all the variables

-(-2v)+8=0

We get rid of parentheses

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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