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

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Solution for ((x+1)/3)-((x+1)/(x+2))=0 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+1)/3-((x+1)/(x+2)) = 0

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

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

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

x^2-1 = 0

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

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

x^2-1 = 0

1*x^2 = 1 // : 1

x^2 = 1

x^2 = 1 // ^ 1/2

abs(x) = 1

x = 1 or x = -1

x in { 1, -1 }

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