4/7=6/x

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Solution for 4/7=6/x equation: 


D( x )

x = 0

x = 0

x = 0

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

4/7 = 6/x // - 6/x

4/7-(6/x) = 0

4/7-6*x^-1 = 0

-6*x^-1 = -4/7 // : -6

x^-1 = 2/21

-1 < 0

1/(x^1) = 2/21 // * x^1

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

21/2 = x^1

x = 21/2

x = 21/2

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