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D( x )
x+2 = 0
2*(x+2) = 0
x+2 = 0
x+2 = 0
x+2 = 0 // - 2
x = -2
2*(x+2) = 0
2*(x+2) = 0
x+2 = 0 // - 2
x = -2
x in (-oo:-2) U (-2:+oo)
5/(x+2)+3/(2*(x+2)) = 1/(x+2)+22 // - 1/(x+2)+22
5/(x+2)+3/(2*(x+2))-(1/(x+2))-22 = 0
5/(x+2)+3/(2*(x+2))-(x+2)^-1-22 = 0
5/(x+2)+3/(2*(x+2))-1/(x+2)-22 = 0
(2*5)/(2*(x+2))+3/(2*(x+2))+(-1*2)/(2*(x+2))+(-22*2*(x+2))/(2*(x+2)) = 0
2*5-22*2*(x+2)-1*2+3 = 0
13-44*x-88-2 = 0
11-44*x-88 = 0
-44*x-77 = 0
(-44*x-77)/(2*(x+2)) = 0
(-44*x-77)/(2*(x+2)) = 0 // * 2*(x+2)
-44*x-77 = 0
-44*x-77 = 0 // + 77
-44*x = 77 // : -44
x = 77/(-44)
x = -7/4
x = -7/4
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