| 1968800 | − | 6455581 50 | − | 9448 | − | 1570098 5 | − | ( | 2000000 | ÷ | 109 100 | × | 9 100 | − | 1570098 5 | ÷ | 113 100 | × | 13 100 | − | 9448 | ÷ | 113 100 | × | 13 100 | − | 6405941 50 | ÷ | 113 100 | × | 13 100 | ) | × | 28 25 | = | x |
| 方程左边 = | 75811039 50 | − | ( | 2000000 | ÷ | 109 100 | × | 9 100 | − | 1570098 5 | ÷ | 113 100 | × | 13 100 | − | 9448 | ÷ | 113 100 | × | 13 100 | − | 6405941 50 | ÷ | 113 100 | × | 13 100 | ) | × | 28 25 |
75811039 50 | − | ( | 2000000 | ÷ | 109 100 | × | 9 100 | − | 1570098 5 | ÷ | 113 100 | × | 13 100 | − | 9448 | ÷ | 113 100 | × | 13 100 | − | 6405941 50 | ÷ | 113 100 | × | 13 100 | ) | × | 28 25 | = | x |
| 方程左边 = | 75811039 50 | − | 2000000 | ÷ | 109 100 | × | 9 100 | × | 28 25 | + | 1570098 5 | ÷ | 113 100 | × | 13 100 | × | 28 25 | + | 9448 | ÷ | 113 100 | × | 13 100 |
| = | 75811039 50 | − | 20160000 109 | + | 571515672 14125 | + | 3439072 2825 | + | 1165881262 70625 | + | 416976 6625 | + | x | × | 84 2575 |