4/12=18/x

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Solution for 4/12=18/x equation: 


D( x )

x = 0

x = 0

x = 0

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

4/12 = 18/x // - 18/x

4/12-(18/x) = 0

4/12-18*x^-1 = 0

-18*x^-1 = -1/3 // : -18

x^-1 = 1/54

-1 < 0

1/(x^1) = 1/54 // * x^1

1 = 1/54*x^1 // : 1/54

54 = x^1

x = 54

x = 54

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