25053 100 | + | X | − | ( | 25053 100 | + | X | ) | × | 9 2500 | = | 343811 100 |
| 方程左边 = | 25053 100 | + | X | − | 25053 100 | × | 9 2500 | − | X | × | 9 2500 |
| = | 25053 100 | + | X | − | 225477 250000 | − | X | × | 9 2500 |
| = | 62407023 250000 | + | 2491 2500 | X |
62407023 250000 | + | 2491 2500 | X | = | 343811 100 |
2491 2500 | X | = | 343811 100 | − | 62407023 250000 |