(2x+1)/(x+2)+3

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Solution for (2x+1)/(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)

(2*x+1)/(x+2)+3 = 0

(2*x+1)/(x+2)+(3*(x+2))/(x+2) = 0

3*(x+2)+2*x+1 = 0

5*x+7 = 0

(5*x+7)/(x+2) = 0

(5*x+7)/(x+2) = 0 // * x+2

5*x+7 = 0

5*x+7 = 0 // - 7

5*x = -7 // : 5

x = -7/5

x = -7/5

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