(326+3x)/(9+x)=11.7

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Solution for (326+3x)/(9+x)=11.7 equation: 


D( x )

x+9 = 0

x+9 = 0

x+9 = 0

x+9 = 0 // - 9

x = -9

x in (-oo:-9) U (-9:+oo)

(3*x+326)/(x+9) = 11.7 // - 11.7

(3*x+326)/(x+9)-11.7 = 0

(3*x+326)/(x+9)+(-11.7*(x+9))/(x+9) = 0

3*x-11.7*(x+9)+326 = 0

220.7-8.7*x = 0

(220.7-8.7*x)/(x+9) = 0

(220.7-8.7*x)/(x+9) = 0 // * x+9

220.7-8.7*x = 0

220.7-8.7*x = 0 // - 220.7

-8.7*x = -220.7 // : -8.7

x = -220.7/(-8.7)

x = 25.36781609

x = 25.36781609

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