20/x=-4

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Solution for 20/x=-4 equation: 


D( x )

x = 0

x = 0

x = 0

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

20/x = -4 // + 4

20/x+4 = 0

20*x^-1 = -4 // : 20

x^-1 = -1/5

-1 < 0

1/(x^1) = -1/5 // * x^1

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

-5 = x^1

x = -5

x = -5

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