7/v=0.4

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Solution for 7/v=0.4 equation: 



7/v=0.4

We move all terms to the left:

7/v-(0.4)=0



Domain of the equation: v!=0

v∈R



We add all the numbers together, and all the variables

7/v-0.4=0

We multiply all the terms by the denominator


-(0.4)*v+7=0

We multiply parentheses

-0.4v+7=0

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

-0.4v=-7

v=-7/-0.4

v=17+0.2/0.4

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