| ( | 13903 400 | − | x | ) | ÷ | 2 | = | 29 1000 |
| 方程左边 = | 13903 400 | × | 1 2 | − | x | × | 1 2 |
| = | 13903 800 | − | x | × | 1 2 |
13903 800 | − | 1 2 | x | = | 29 1000 |
| - | 1 2 | x | = | 29 1000 | − | 13903 800 |
| - | 1 2 | x | = | - | 69399 4000 |
69399 4000 | = | 1 2 | x |
1 2 | x | = | 69399 4000 |
| x | = | 69399 4000 | ÷ | 1 2 |
| = | 69399 4000 | × | 2 |
| = | 69399 2000 | × | 1 |
| x | = | 69399 2000 |
| x | = | 34.6995 |