16/31=21/x

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Solution for 16/31=21/x equation: 


D( x )

x = 0

x = 0

x = 0

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

16/31 = 21/x // - 21/x

16/31-(21/x) = 0

16/31-21*x^-1 = 0

-21*x^-1 = -16/31 // : -21

x^-1 = 16/651

-1 < 0

1/(x^1) = 16/651 // * x^1

1 = 16/651*x^1 // : 16/651

651/16 = x^1

x = 651/16

x = 651/16

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