| 1 | ÷ | 5663 20 | = | X | ÷ | 7463 20 | + | 17 250 | ÷ | 5163 20 | + | ( | 1 | − | 17 250 | − | 781 5000 | − | X | ) | ÷ | 4063 20 | + | 781 5000 | ÷ | 6383 20 |
| 方程左边 = | 20 5663 |
20 5663 | = | X | ÷ | 7463 20 | + | 17 250 | ÷ | 5163 20 | + | ( | 1 | − | 17 250 | − | 781 5000 | − | X | ) | ÷ | 4063 20 | + | 781 5000 | ÷ | 6383 20 |
| 方程右边 = | X | × | 20 7463 | + | 34 129075 | + | ( | 1 | − | 17 250 | − | 781 5000 | − | X | ) | × | 20 4063 | + | 781 1595750 |
| X= | √376359 √1750000 |