-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 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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