В трех букетах всего 15роз. в первом и во втором вместе 8роз, а во втором и в третьем вместе 12роз. сколько роз в каждом букете?

1. I saw him slip and fall. 2. I heard her suddenly cry out loudly.3. The policeman saw her bend and pick up something from the floor. 4. I saw him open the door and leave the room. 5. I saw her drop the cup on the floor and break it. 6. We watched them turn the corner and disappear. 7. The boy felt the doctor touch his leg. 8. His friends saw Peter buy some flowers. 9. The wounded hunter felt the bear touch him, but he did not move. 10. Shall we hear the telephone ring?

: x+y+z=15; x+y=8; y+z=12. В результате получаем х=3 (кол-во в первом букете) , y=5 (во втором) и z=7 (кол-во в третьем букете)