(-3x/x+12)=(9/x-18)

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Solution for (-3x/x+12)=(9/x-18) equation: 


D( x )

x = 0

x = 0

x = 0

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

(-3*x)/x+12 = 9/x-18 // - 9/x-18

(-3*x)/x-(9/x)+12+18 = 0

(-3*x)/x-9*x^-1+12+18 = 0

-9*x^-1 = -27 // : -9

x^-1 = 3

-1 < 0

1/(x^1) = 3 // * x^1

1 = 3*x^1 // : 3

1/3 = x^1

x = 1/3

x = 1/3

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