3v+7v=20

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Solution for 3v+7v=20 equation: 



3v+7v=20

We move all terms to the left:

3v+7v-(20)=0

We add all the numbers together, and all the variables

10v-20=0

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

10v=20

v=20/10

v=2

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