| 1000 | × | 1 10 | ( | 0 | − | 433 250 | ÷ | 2 | × | 159 50 | ) | = | - | 7030 | × | 3 40 | × | 3 40 | × | 6283 2000 | × | 1 2 | ( | 433 250 | ÷ | 2 | ) | − | x |
| 方程左边 = | 100 | ( | 0 | − | 433 250 | ÷ | 2 | × | 159 50 | ) |
| 100 | ( | 0 | − | 433 250 | ÷ | 2 | × | 159 50 | ) | = | - | 7030 | × | 3 40 | × | 3 40 | × | 6283 2000 | × | 1 2 | ( | 433 250 | ÷ | 2 | ) | − | x |
| 方程左边 = | 100 | × | 0 | − | 100 | × | 433 250 | ÷ | 2 | × | 159 50 |
| = | 0 | − | 68847 250 |
| = | - | 68847 250 |
| - | 68847 250 | = | - | 7030 | × | 3 40 | × | 3 40 | × | 6283 2000 | × | 1 2 | ( | 433 250 | ÷ | 2 | ) | − | x |
| 方程右边 = | - | 39752541 640000 | ( | 433 250 | ÷ | 2 | ) | − | x |
| - | 68847 250 | = | - | 39752541 640000 | ( | 433 250 | ÷ | 2 | ) | − | x |
| 方程右边 = | - | 39752541 640000 | × | 433 250 | ÷ | 2 | − | x |