X-9=-18/x

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Solution for X-9=-18/x equation: 


D( x )

x = 0

x = 0

x = 0

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

X-9 = -18/x // + -18/x

X-(-18/x)-9 = 0

X+18*x^-1-9 = 0

18*x^-1 = -(X-9) // : 18

x^-1 = (9-X)/18

-1 < 0

1/(x^1) = (9-X)/18 // * x^1

1 = x^1*((9-X)/18) // : (9-X)/18

18*(9-X)^-1 = x^1

x = 18*(9-X)^-1

x = 18*(9-X)^-1

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