y=4/x-5

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Solution for y=4/x-5 equation:


D( x )

x = 0

x = 0

x = 0

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

y = 4/x-5 // - 4/x-5

y-(4/x)+5 = 0

y-4*x^-1+5 = 0

-4*x^-1 = -(y+5) // : -4

x^-1 = (y+5)/4

-1 < 0

1/(x^1) = (y+5)/4 // * x^1

1 = x^1*((y+5)/4) // : (y+5)/4

4*(y+5)^-1 = x^1

x = 4*(y+5)^-1

x = 4*(y+5)^-1

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