2y-2/x

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Solution for 2y-2/x equation: 


D( x )

x = 0

x = 0

x = 0

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

2*y-(2/x) = 0

2*y-2*x^-1 = 0

-2*x^-1 = -(2*y) // : -2

x^-1 = y

-1 < 0

1/(x^1) = y // * x^1

1 = x^1*y // : y

1/y = x^1

x = 1/y

x = 1/y

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