-2/5*y=4

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Solution for -2/5*y=4 equation: 



-2/5y=4

We move all terms to the left:

-2/5y-(4)=0



Domain of the equation: 5y!=0

y!=0/5

y!=0

y∈R



We multiply all the terms by the denominator


-4*5y-2=0

Wy multiply elements

-20y-2=0

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

-20y=2

y=2/-20

y=-1/10

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