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（7+9）÷4×6=24
2: (6 ÷ 4) × (7 + 9)
3: 6 ÷ (4 ÷ (7 + 9))
4: 6 ÷ 4 ×(9 + 7)
5: (6 ÷ 4) × (9 + 7)
6: 6 ÷ (4 ÷ (9 + 7))
7: (6 × (7 + 9)) ÷ 4
8: 6 × (7 + 9) ÷ 4
9: 6 × ((7 + 9) ÷ 4)
10: (6 × (9 + 7)) ÷ 4
11: 6 × (9 + 7) ÷ 4
12: 6 × ((9 + 7) ÷ 4)
13: (7 + 9) ÷ 4 × 6
14: ((7 + 9) ÷ 4) × 6
15: (7 + 9) ÷ (4 ÷ 6)
16: (7 + 9) × 6 ÷ 4
17: ((7 + 9) × 6) ÷ 4
18: (7 + 9) × (6 ÷ 4)
19: (9 + 7) ÷ 4 × 6
20: ((9 + 7) ÷ 4) × 6
21: (9 + 7) ÷ (4 ÷ 6)
22: (9 + 7) × 6 ÷ 4
23: ((9 + 7) × 6) ÷ 4
24: (9 + 7) × (6 ÷ 4)
2: (6 ÷ 4) × (7 + 9)
3: 6 ÷ (4 ÷ (7 + 9))
4: 6 ÷ 4 ×(9 + 7)
5: (6 ÷ 4) × (9 + 7)
6: 6 ÷ (4 ÷ (9 + 7))
7: (6 × (7 + 9)) ÷ 4
8: 6 × (7 + 9) ÷ 4
9: 6 × ((7 + 9) ÷ 4)
10: (6 × (9 + 7)) ÷ 4
11: 6 × (9 + 7) ÷ 4
12: 6 × ((9 + 7) ÷ 4)
13: (7 + 9) ÷ 4 × 6
14: ((7 + 9) ÷ 4) × 6
15: (7 + 9) ÷ (4 ÷ 6)
16: (7 + 9) × 6 ÷ 4
17: ((7 + 9) × 6) ÷ 4
18: (7 + 9) × (6 ÷ 4)
19: (9 + 7) ÷ 4 × 6
20: ((9 + 7) ÷ 4) × 6
21: (9 + 7) ÷ (4 ÷ 6)
22: (9 + 7) × 6 ÷ 4
23: ((9 + 7) × 6) ÷ 4
24: (9 + 7) × (6 ÷ 4)
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