4v+3v=-21

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Solution for 4v+3v=-21 equation: 



4v+3v=-21

We move all terms to the left:

4v+3v-(-21)=0

We add all the numbers together, and all the variables

7v+21=0

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

7v=-21

v=-21/7

v=-3

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