(x+7)/(x+2)=9

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Solution for (x+7)/(x+2)=9 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+7)/(x+2) = 9 // - 9

(x+7)/(x+2)-9 = 0

(x+7)/(x+2)+(-9*(x+2))/(x+2) = 0

x-9*(x+2)+7 = 0

-8*x-11 = 0

(-8*x-11)/(x+2) = 0

(-8*x-11)/(x+2) = 0 // * x+2

-8*x-11 = 0

-8*x-11 = 0 // + 11

-8*x = 11 // : -8

x = 11/(-8)

x = -11/8

x = -11/8

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