5/9=55/x

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Solution for 5/9=55/x equation: 


D( x )

x = 0

x = 0

x = 0

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

5/9 = 55/x // - 55/x

5/9-(55/x) = 0

5/9-55*x^-1 = 0

-55*x^-1 = -5/9 // : -55

x^-1 = 1/99

-1 < 0

1/(x^1) = 1/99 // * x^1

1 = 1/99*x^1 // : 1/99

99 = x^1

x = 99

x = 99

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