4=-5/x-6

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Solution for 4=-5/x-6 equation: 


D( x )

x = 0

x = 0

x = 0

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

4 = -5/x-6 // + -5/x-6

4-(-5/x)+6 = 0

5*x^-1+4+6 = 0

5*x^-1 = -10 // : 5

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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