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

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


D( x )

x+2 = 0

x+2 = 0

x+2 = 0

x+2 = 0 // - 2

x = -2

x in (-oo:-2) U (-2:+oo)

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

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

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

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

6-2*x = 0

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

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

6-2*x = 0

6-2*x = 0 // - 6

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

x = -6/(-2)

x = 3

x = 3

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