7/x+5+3/x

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Solution for 7/x+5+3/x equation: 


D( x )

x = 0

x = 0

x = 0

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

7/x+3/x+5 = 0

10*x^-1 = -5 // : 10

x^-1 = -1/2

-1 < 0

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

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

-2 = x^1

x = -2

x = -2

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