0.1/x+3.9/x=12

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Solution for 0.1/x+3.9/x=12 equation: 


D( x )

x = 0

x = 0

x = 0

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

0.1/x+3.9/x = 12 // - 12

0.1/x+3.9/x-12 = 0

4*x^-1 = 12 // : 4

x^-1 = 3

-1 < 0

1/(x^1) = 3 // * x^1

1 = 3*x^1 // : 3

1/3 = x^1

x = 1/3

x = 1/3

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