42=-7/9v

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Solution for 42=-7/9v equation: 



42=-7/9v

We move all terms to the left:

42-(-7/9v)=0



Domain of the equation: 9v)!=0

v!=0/1

v!=0

v∈R



We get rid of parentheses

7/9v+42=0

We multiply all the terms by the denominator


42*9v+7=0

Wy multiply elements

378v+7=0

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

378v=-7

v=-7/378

v=-1/54

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