3,5,7,8,结果等于20是怎么算

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（3+8-7）×5=20
======以下答案可供参考======
供参考答案1:
1: 3 - (5 - 8) × 7
2: 3 - ((5 - 8) × 7)
3: 3 - (7 × (5 - 8))
4: 3 - 7 ×(5 - 8)
5: 3 × 7 - 5 + 8
6: (3 × 7) - 5 + 8
7: (3 × 7 - 5) + 8
8: ((3 × 7) - 5) + 8
9: 3 × 7 -(5 - 8)
10: (3 × 7) - (5 - 8)
11: 3 + (7 × (8 - 5))
12: 3 + 7 ×(8 - 5)
13: 3 × 7 + 8 - 5
14: (3 × 7) + 8 - 5
15: (3 × 7 + 8) - 5
16: ((3 × 7) + 8) - 5
17: 3 × 7 +(8 - 5)
18: (3 × 7) + (8 - 5)
19: 3 + (8 - 5) × 7
20: 3 + ((8 - 5) × 7)
21: 5 × 7 -(3 + 8)
22: (5 × 7) - (3 + 8)
23: 5 × 7 - 3 - 8
24: (5 × 7) - 3 - 8
25: (5 × 7 - 3) - 8
26: ((5 × 7) - 3) - 8
27: 5 × 7 -(8 + 3)
28: (5 × 7) - (8 + 3)
29: 5 × 7 - 8 - 3
30: (5 × 7) - 8 - 3
31: (5 × 7 - 8) - 3
32: ((5 × 7) - 8) - 3
33: 7 × 3 - 5 + 8
34: (7 × 3) - 5 + 8
35: (7 × 3 - 5) + 8
36: ((7 × 3) - 5) + 8
37: 7 × 3 -(5 - 8)
38: (7 × 3) - (5 - 8)
39: 7 × 3 + 8 - 5
40: (7 × 3) + 8 - 5
41: (7 × 3 + 8) - 5
42: ((7 × 3) + 8) - 543: 7 × 3 +(8 - 5)44: (7 × 3) + (8 - 5)45: 7 × 5 -(3 + 8)46: (7 × 5) - (3 + 8)47: 7 × 5 - 3 - 848: (7 × 5) - 3 - 849: (7 × 5 - 3) - 850: ((7 × 5) - 3) - 851: 7 × 5 -(8 + 3)52: (7 × 5) - (8 + 3)53: 7 × 5 - 8 - 354: (7 × 5) - 8 - 355: (7 × 5 - 8) - 356: ((7 × 5) - 8) - 357: (7 × (8 - 5)) + 358: 7 × (8 - 5) + 359: 8 + 3 × 7 - 5