8129 10000 | x | + | 1 | − | x | = | 443 500 |
| 方程左边 = | - | 1871 10000 | x | + | 1 |
| - | 1871 10000 | x | + | 1 | = | 443 500 |
| - | 1871 10000 | x | = | 443 500 | − | 1 |
| - | 1871 10000 | x | = | - | 57 500 |
57 500 | = | 1871 10000 | x |
1871 10000 | x | = | 57 500 |
| x | = | 57 500 | ÷ | 1871 10000 |
| = | 57 500 | × | 10000 1871 |
| = | 57 | × | 20 1871 |
| x | = | 1140 1871 |
| x | = | 0.6093 |