-8=-(4/x)

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Solution for -8=-(4/x) equation: 


D( x )

x = 0

x = 0

x = 0

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

-8 = -(4/x) // + 4/x

4/x-8 = 0

4*x^-1 = 8 // : 4

x^-1 = 2

-1 < 0

1/(x^1) = 2 // * x^1

1 = 2*x^1 // : 2

1/2 = x^1

x = 1/2

x = 1/2

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