2/x+2=4/x+7

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Solution for 2/x+2=4/x+7 equation: 


D( x )

x = 0

x = 0

x = 0

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

2/x+2 = 4/x+7 // - 4/x+7

2/x-(4/x)-7+2 = 0

2/x-4*x^-1-7+2 = 0

-2*x^-1 = 5 // : -2

x^-1 = -5/2

-1 < 0

1/(x^1) = -5/2 // * x^1

1 = -5/2*x^1 // : -5/2

-2/5 = x^1

x = -2/5

x = -2/5

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