9/x+4=18/x+2

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Solution for 9/x+4=18/x+2 equation: 


D( x )

x = 0

x = 0

x = 0

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

9/x+4 = 18/x+2 // - 18/x+2

9/x-(18/x)-2+4 = 0

9/x-18*x^-1-2+4 = 0

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

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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