Răspunsuri

2014-10-19T21:00:23+03:00
a) x= 1/2 -2 = -3/2 ∈ Q
b) 2x= 1 ==> x = 1/2 ∈ Q
c) x:(0,5) = 1 ==> 2x = 1 ==> x = 1/2 ∈ Q
d) 6x + 3 = 1 ==> 6x = -2 ==> x = -1/3 ∈ Q