4/y=0.4

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Solution for 4/y=0.4 equation: 



4/y=0.4

We move all terms to the left:

4/y-(0.4)=0



Domain of the equation: y!=0

y∈R



We add all the numbers together, and all the variables

4/y-0.4=0

We multiply all the terms by the denominator


-(0.4)*y+4=0

We multiply parentheses

-0.4y+4=0

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

-0.4y=-4

y=-4/-0.4

y=+10

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