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

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


D( x )

x = 0

x = 0

x = 0

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

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

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

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

-4*x^-1 = -3/7 // : -4

x^-1 = 3/28

-1 < 0

1/(x^1) = 3/28 // * x^1

1 = 3/28*x^1 // : 3/28

28/3 = x^1

x = 28/3

x = 28/3

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