2/x-1/y=13

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Solution for 2/x-1/y=13 equation: 


D( x )

x = 0

x = 0

x = 0

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

2/x-(1/y) = 13 // - 13

2/x-(1/y)-13 = 0

2/x-y^-1-13 = 0

2*x^-1 = -(-y^-1-13) // : 2

x^-1 = (y^-1+13)/2

-1 < 0

1/(x^1) = (y^-1+13)/2 // * x^1

1 = x^1*((y^-1+13)/2) // : (y^-1+13)/2

2*(y^-1+13)^-1 = x^1

x = 2*(y^-1+13)^-1

x = 2*(y^-1+13)^-1

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