X-4/x-12=0

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Solution for X-4/x-12=0 equation: 


D( x )

x = 0

x = 0

x = 0

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

X-(4/x)-12 = 0

X-4*x^-1-12 = 0

-4*x^-1 = -(X-12) // : -4

x^-1 = (12-X)/(-4)

-1 < 0

1/(x^1) = (12-X)/(-4) // * x^1

1 = x^1*((12-X)/(-4)) // : (12-X)/(-4)

-4*(12-X)^-1 = x^1

x = -4*(12-X)^-1

x = -4*(12-X)^-1

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