6+8-7+6-1+8+5-46+2+85+9*5-2+9+7+8+3*8 = 157
1. 6 + 8 = 14
2. -7 + 6 = -1
3. -1 + 8 = 7
4. 5 - 46 = -41
5. 2 + 85 = 87
6. 45 - 2 = 43
7. 9 + 7 = 16
8. 8 + 24 = 32
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9. 14 - 1 = 13
10. 13 + 7 = 20
11. 20 - 41 = -21
12. -21 + 87 = 66
13. 66 + 43 = 109
14. 109 + 16 = 125
15. 125 + 32 = 157