42:7.3+2+24:3-7+9.3=

1. 42 : 7 = 6

2. 6 * 3 = 18

3. 24 : 3 = 8

4. 9 * 3 = 27

5. 18 + 2 = 20

6. 20 + 8 = 28

7. 28 - 7 = 21

8. 21 + 27 = 48

Ответ: 48