PLSSS
DAU COROANA
DAU TEST

Răspuns:
A={x=5,6,7,8}
B={y= 5-3, 6-3, 7-3, 8-3 => y=2,3,4,5}
C={z= 2×2, 3×2,4×2,5×2 => z=4,6,8,10}