20/x=4/x-5

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Solution for 20/x=4/x-5 equation: 


D( x )

x = 0

x = 0

x = 0

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

20/x = 4/x-5 // - 4/x-5

20/x-(4/x)+5 = 0

20/x-4*x^-1+5 = 0

16*x^-1 = -5 // : 16

x^-1 = -5/16

-1 < 0

1/(x^1) = -5/16 // * x^1

1 = -5/16*x^1 // : -5/16

-16/5 = x^1

x = -16/5

x = -16/5

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