12/(x-12)=3

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Solution for 12/(x-12)=3 equation: 


D( x )

x-12 = 0

x-12 = 0

x-12 = 0

x-12 = 0 // + 12

x = 12

x in (-oo:12) U (12:+oo)

12/(x-12) = 3 // - 3

12/(x-12)-3 = 0

12/(x-12)+(-3*(x-12))/(x-12) = 0

12-3*(x-12) = 0

48-3*x = 0

(48-3*x)/(x-12) = 0

(48-3*x)/(x-12) = 0 // * x-12

48-3*x = 0

48-3*x = 0 // - 48

-3*x = -48 // : -3

x = -48/(-3)

x = 16

x = 16

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