7v+v-v=7

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Solution for 7v+v-v=7 equation: 



7v+v-v=7

We move all terms to the left:

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

We add all the numbers together, and all the variables

7v-7=0

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

7v=7

v=7/7

v=1

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