5/x=2/x-4.2

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Solution for 5/x=2/x-4.2 equation: 


D( x )

x = 0

x = 0

x = 0

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

5/x = 2/x-4.2 // - 2/x-4.2

5/x-(2/x)+4.2 = 0

5/x-2*x^-1+4.2 = 0

3*x^-1 = -4.2 // : 3

x^-1 = -1.4

-1 < 0

1/(x^1) = -1.4 // * x^1

1 = -1.4*x^1 // : -1.4

-0.71428571 = x^1

x = -0.71428571

x = -0.71428571

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