7/x+1=5/x-3

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Solution for 7/x+1=5/x-3 equation: 


D( x )

x = 0

x = 0

x = 0

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

7/x+1 = 5/x-3 // - 5/x-3

7/x-(5/x)+1+3 = 0

7/x-5*x^-1+1+3 = 0

2*x^-1 = -4 // : 2

x^-1 = -2

-1 < 0

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

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

-1/2 = x^1

x = -1/2

x = -1/2

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