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D( x )
3-(2*x) = 0
3-(2*x) = 0
3-(2*x) = 0
3-2*x = 0
3-2*x = 0 // - 3
-2*x = -3 // : -2
x = -3/(-2)
x = 3/2
x in (-oo:3/2) U (3/2:+oo)
2/(3-(2*x)) = 1 // - 1
2/(3-(2*x))-1 = 0
2/(3-2*x)-1 = 0
2/(3-2*x)+(-1*(3-2*x))/(3-2*x) = 0
2-1*(3-2*x) = 0
2*x-1 = 0
(2*x-1)/(3-2*x) = 0
(2*x-1)/(3-2*x) = 0 // * 3-2*x
2*x-1 = 0
2*x-1 = 0 // + 1
2*x = 1 // : 2
x = 1/2
x = 1/2
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