(21/x)-(35/x-2)+4=0

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Solution for (21/x)-(35/x-2)+4=0 equation: 


D( x )

x = 0

x = 0

x = 0

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

21/x-(35/x)+2+4 = 0

21/x-35*x^-1+2+4 = 0

-14*x^-1 = -6 // : -14

x^-1 = 3/7

-1 < 0

1/(x^1) = 3/7 // * x^1

1 = 3/7*x^1 // : 3/7

7/3 = x^1

x = 7/3

x = 7/3

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