55/99=5/x

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Solution for 55/99=5/x equation: 


D( x )

x = 0

x = 0

x = 0

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

55/99 = 5/x // - 5/x

55/99-(5/x) = 0

55/99-5*x^-1 = 0

-5*x^-1 = -5/9 // : -5

x^-1 = 1/9

-1 < 0

1/(x^1) = 1/9 // * x^1

1 = 1/9*x^1 // : 1/9

9 = x^1

x = 9

x = 9

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