42=3v+15

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Solution for 42=3v+15 equation: 



42=3v+15

We move all terms to the left:

42-(3v+15)=0

We get rid of parentheses

-3v-15+42=0

We add all the numbers together, and all the variables

-3v+27=0

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

-3v=-27

v=-27/-3

v=+9

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