2v+v=21

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Solution for 2v+v=21 equation:



2v+v=21
We move all terms to the left:
2v+v-(21)=0
We add all the numbers together, and all the variables
3v-21=0
We move all terms containing v to the left, all other terms to the right
3v=21
v=21/3
v=7

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