| X | + | 50 | × | 8 | × | 1 500 | + | X | × | 3 2000 | + | X | × | 1 10 | + | 17 100 | X | + | 17 1000 | X | = | 5867 10 |
| 方程左边 = | X | + | 4 5 | + | X | × | 3 2000 | + | X | × | 1 10 | + | 17 100 | X | + | 17 1000 | X |
| = | 2577 2000 | X | + | 4 5 |
2577 2000 | X | + | 4 5 | = | 5867 10 |
2577 2000 | X | = | 5867 10 | − | 4 5 |
2577 2000 | X | = | 5859 10 |
| X | = | 5859 10 | ÷ | 2577 2000 |
| = | 5859 10 | × | 2000 2577 |
| = | 1953 | × | 200 859 |
| X | = | 390600 859 |
| X | = | 454.714785 |