18/x=4

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Solution for 18/x=4 equation: 


D( x )

x = 0

x = 0

x = 0

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

18/x = 4 // - 4

18/x-4 = 0

18*x^-1 = 4 // : 18

x^-1 = 2/9

-1 < 0

1/(x^1) = 2/9 // * x^1

1 = 2/9*x^1 // : 2/9

9/2 = x^1

x = 9/2

x = 9/2

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