3,6,7,9\24点快啊,24点

3,6,7,9\24点快啊,24点
3,6,7,9\24点
快啊,24点

3,6,7,9\24点快啊,24点
1: 3 - (6 - 9) × 7
2: 3 - ((6 - 9) × 7)
3: 3 × (6 + 9 - 7)
4: 3 × ((6 + 9) - 7)
5: 3 × (6 + (9 - 7))
6: 3 × (6 - 7 + 9)
7: 3 × ((6 - 7) + 9)
8: 3 × (6 - (7 - 9))
9: 3 + (9 - 6) × 7
10: 3 + ((9 - 6) × 7)
11: 3 × (9 + 6 - 7)
12: 3 × ((9 + 6) - 7)
13: 3 × (9 + (6 - 7))
14: 3 × (9 - 7 + 6)
15: 3 × ((9 - 7) + 6)
16: 3 × (9 - (7 - 6))
17: 3 - (7 × (6 - 9))
18: 3 - 7 ×(6 - 9)
19: 3 × 7 - 6 + 9

3×7＋（9-6）

3 - (6 - 9) × 7
3 × (6 + 9 - 7)
3 + (9 - 6) × 7

3X[9-(7-6)]
是这样吗？

9减7得2，2加6得8，8乘以3
9减6得3，3乘以7加3
9乘以3得3，7减3得4，4乘以6

(6-(7-9))*3=24