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D( x )
1-(2*x) = 0
3*z-4 = 0
1-(2*x) = 0
1-(2*x) = 0
1-2*x = 0
1-2*x = 0 // - 1
-2*x = -1 // : -2
x = -1/(-2)
x = 1/2
3*z-4 = 0
3*z-4 = 0
3*z-4 = 0
x naleu017Cy do R
x belongs to the empty set
5/(3*z-4) = -3/(1-(2*x))
x belongs to the empty set
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