12/x=40/100

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Solution for 12/x=40/100 equation: 


D( x )

x = 0

x = 0

x = 0

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

12/x = 40/100 // - 40/100

12/x-(40/100) = 0

12/x-2/5 = 0

12*x^-1 = 2/5 // : 12

x^-1 = 1/30

-1 < 0

1/(x^1) = 1/30 // * x^1

1 = 1/30*x^1 // : 1/30

30 = x^1

x = 30

x = 30

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