4/x-1=9

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Solution for 4/x-1=9 equation: 


D( x )

x = 0

x = 0

x = 0

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

4/x-1 = 9 // - 9

4/x-9-1 = 0

4*x^-1 = 10 // : 4

x^-1 = 5/2

-1 < 0

1/(x^1) = 5/2 // * x^1

1 = 5/2*x^1 // : 5/2

2/5 = x^1

x = 2/5

x = 2/5

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