算24点答案急需

Question

4、7、8、9

5、6、7、7
急需答案。谢谢哦！

Answer 1

(9/(7-4))*8=24

1: (5 - 7 ÷ 7) × 6
2: (5 - (7 ÷ 7)) × 6
3: 6 × (5 - 7 ÷ 7)
4: 6 × (5 - (7 ÷ 7))
3,3,7,7,:1: (3 + 3 ÷ 7) × 7
2: (3 + (3 ÷ 7)) × 7
3: (3 ÷ 7 + 3) × 7
4: ((3 ÷ 7) + 3) × 7
5: 7 × (3 + 3 ÷ 7)
6: 7 × (3 + (3 ÷ 7))
7: 7 × (3 ÷ 7 + 3)
8: 7 × ((3 ÷ 7) + 3)

Answer 2

[8-（9-7）]×4=24
[（9÷（7-4）]×8=24

（5-7÷7）×6=24

Answer 3

(9/(7-4))*8=24

Answer 4

4*(8+7-9)=24