(1/y)=20-(5/y)

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Solution for (1/y)=20-(5/y) equation: 


D( y )

y = 0

y = 0

y = 0

y in (-oo:0) U (0:+oo)

1/y = 20-(5/y) // - 20-(5/y)

1/y+5/y-20 = 0

6*y^-1 = 20 // : 6

y^-1 = 10/3

-1 < 0

1/(y^1) = 10/3 // * y^1

1 = 10/3*y^1 // : 10/3

3/10 = y^1

y = 3/10

y = 3/10

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