42=-v/2

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Solution for 42=-v/2 equation: 



42=-v/2

We move all terms to the left:

42-(-v/2)=0

We get rid of parentheses

v/2+42=0

We multiply all the terms by the denominator


v+42*2=0

We add all the numbers together, and all the variables

v+84=0

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

v=-84

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