0.5=-0.8/x

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Solution for 0.5=-0.8/x equation: 


D( x )

x = 0

x = 0

x = 0

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

0.5 = -0.8/x // + -0.8/x

0.5-(-0.8/x) = 0

0.8*x^-1+0.5 = 0

0.8*x^-1 = -0.5 // : 0.8

x^-1 = -0.625

-1 < 0

1/(x^1) = -0.625 // * x^1

1 = -0.625*x^1 // : -0.625

-1.6 = x^1

x = -1.6

x = -1.6

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