12/x=-3

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Solution for 12/x=-3 equation: 


D( x )

x = 0

x = 0

x = 0

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

12/x = -3 // + 3

12/x+3 = 0

12*x^-1 = -3 // : 12

x^-1 = -1/4

-1 < 0

1/(x^1) = -1/4 // * x^1

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

-4 = x^1

x = -4

x = -4

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