(5/x)=(16/21)

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Solution for (5/x)=(16/21) equation: 


D( x )

x = 0

x = 0

x = 0

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

5/x = 16/21 // - 16/21

5/x-(16/21) = 0

5/x-16/21 = 0

5*x^-1 = 16/21 // : 5

x^-1 = 16/105

-1 < 0

1/(x^1) = 16/105 // * x^1

1 = 16/105*x^1 // : 16/105

105/16 = x^1

x = 105/16

x = 105/16

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