9/x=1.25

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Solution for 9/x=1.25 equation: 


D( x )

x = 0

x = 0

x = 0

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

9/x = 1.25 // - 1.25

9/x-1.25 = 0

9*x^-1 = 1.25 // : 9

x^-1 = 0.13888889

-1 < 0

1/(x^1) = 0.13888889 // * x^1

1 = 0.13888889*x^1 // : 0.13888889

7.19999994 = x^1

x = 7.19999994

x = 7.19999994

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