0.4=12/y

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Solution for 0.4=12/y equation: 



0.4=12/y

We move all terms to the left:

0.4-(12/y)=0



Domain of the equation: y)!=0

y!=0/1

y!=0

y∈R



We add all the numbers together, and all the variables

-(+12/y)+0.4=0

We get rid of parentheses

-12/y+0.4=0

We multiply all the terms by the denominator


(0.4)*y-12=0

We multiply parentheses

0.4y-12=0

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

0.4y=12

y=12/0.4

y=30

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