3=87/x

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Solution for 3=87/x equation: 


D( x )

x = 0

x = 0

x = 0

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

3 = 87/x // - 87/x

3-(87/x) = 0

3-87*x^-1 = 0

-87*x^-1 = -3 // : -87

x^-1 = 1/29

-1 < 0

1/(x^1) = 1/29 // * x^1

1 = 1/29*x^1 // : 1/29

29 = x^1

x = 29

x = 29

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