4=(2/3)-(9/x)

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Solution for 4=(2/3)-(9/x) equation: 


D( x )

x = 0

x = 0

x = 0

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

4 = 2/3-(9/x) // - 2/3-(9/x)

9/x-(2/3)+4 = 0

9/x-2/3+4 = 0

9*x^-1 = -10/3 // : 9

x^-1 = -10/27

-1 < 0

1/(x^1) = -10/27 // * x^1

1 = -10/27*x^1 // : -10/27

-27/10 = x^1

x = -27/10

x = -27/10

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