(7/x)-(1/7)=(2/x)

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Solution for (7/x)-(1/7)=(2/x) equation: 


D( x )

x = 0

x = 0

x = 0

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

7/x-(1/7) = 2/x // - 2/x

7/x-(2/x)-(1/7) = 0

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

5*x^-1 = 1/7 // : 5

x^-1 = 1/35

-1 < 0

1/(x^1) = 1/35 // * x^1

1 = 1/35*x^1 // : 1/35

35 = x^1

x = 35

x = 35

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