80/x=8.21

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Solution for 80/x=8.21 equation: 


D( x )

x = 0

x = 0

x = 0

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

80/x = 8.21 // - 8.21

80/x-8.21 = 0

80*x^-1 = 8.21 // : 80

x^-1 = 0.102625

-1 < 0

1/(x^1) = 0.102625 // * x^1

1 = 0.102625*x^1 // : 0.102625

9.74421437 = x^1

x = 9.74421437

x = 9.74421437

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