2/3=1/3/7/x

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Solution for 2/3=1/3/7/x equation: 


D( x )

x = 0

x = 0

x = 0

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

2/3 = ((1/3)/7)/x // - ((1/3)/7)/x

2/3-(((1/3)/7)/x) = 0

(-1/21)*x^-1+2/3 = 0

-1/21*x^-1 = -2/3 // : -1/21

x^-1 = 14

-1 < 0

1/(x^1) = 14 // * x^1

1 = 14*x^1 // : 14

1/14 = x^1

x = 1/14

x = 1/14

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