16/100=21/x

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Solution for 16/100=21/x equation: 


D( x )

x = 0

x = 0

x = 0

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

16/100 = 21/x // - 21/x

16/100-(21/x) = 0

16/100-21*x^-1 = 0

-21*x^-1 = -4/25 // : -21

x^-1 = 4/525

-1 < 0

1/(x^1) = 4/525 // * x^1

1 = 4/525*x^1 // : 4/525

525/4 = x^1

x = 525/4

x = 525/4

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