7=3/x

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Solution for 7=3/x equation: 


D( x )

x = 0

x = 0

x = 0

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

7 = 3/x // - 3/x

7-(3/x) = 0

7-3*x^-1 = 0

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

x^-1 = 7/3

-1 < 0

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

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

3/7 = x^1

x = 3/7

x = 3/7

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