3/x+3=4/x+12

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Solution for 3/x+3=4/x+12 equation: 


D( x )

x = 0

x = 0

x = 0

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

3/x+3 = 4/x+12 // - 4/x+12

3/x-(4/x)-12+3 = 0

3/x-4*x^-1-12+3 = 0

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

x^-1 = -9

-1 < 0

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

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

-1/9 = x^1

x = -1/9

x = -1/9

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