12/(x+3)=2

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Solution for 12/(x+3)=2 equation: 


D( x )

x+3 = 0

x+3 = 0

x+3 = 0

x+3 = 0 // - 3

x = -3

x in (-oo:-3) U (-3:+oo)

12/(x+3) = 2 // - 2

12/(x+3)-2 = 0

12/(x+3)+(-2*(x+3))/(x+3) = 0

12-2*(x+3) = 0

6-2*x = 0

(6-2*x)/(x+3) = 0

(6-2*x)/(x+3) = 0 // * x+3

6-2*x = 0

6-2*x = 0 // - 6

-2*x = -6 // : -2

x = -6/(-2)

x = 3

x = 3

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