25/100=4/x

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Solution for 25/100=4/x equation: 


D( x )

x = 0

x = 0

x = 0

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

25/100 = 4/x // - 4/x

25/100-(4/x) = 0

25/100-4*x^-1 = 0

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

x^-1 = 1/16

-1 < 0

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

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

16 = x^1

x = 16

x = 16

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