1-(9.9/x)=13.9

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Solution for 1-(9.9/x)=13.9 equation: 


D( x )

x = 0

x = 0

x = 0

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

1-(9.9/x) = 13.9 // - 13.9

1-(9.9/x)-13.9 = 0

1-9.9*x^-1-13.9 = 0

-9.9*x^-1 = 12.9 // : -9.9

x^-1 = -1.3030303

-1 < 0

1/(x^1) = -1.3030303 // * x^1

1 = -1.3030303*x^1 // : -1.3030303

-0.76744186 = x^1

x = -0.76744186

x = -0.76744186

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