| ( | X | − | 1023 | − | 5000 | ) | × | 3 10 | = | X | − | 408609 100 |
| 方程左边 = | X | × | 3 10 | − | 1023 | × | 3 10 | − | 5000 | × | 3 10 |
| = | X | × | 3 10 | − | 3069 10 | − | 1500 |
| = | 3 10 | X | − | 18069 10 |
3 10 | X | − | 18069 10 | = | X | − | 408609 100 |
3 10 | X | − | X | = | - | 408609 100 | + | 18069 10 |
| - | 7 10 | X | = | - | 408609 100 | + | 18069 10 |
| - | 7 10 | X | = | - | 227919 100 |
227919 100 | = | 7 10 | X |
7 10 | X | = | 227919 100 |
| X | = | 227919 100 | ÷ | 7 10 |
| = | 227919 100 | × | 10 7 |
| = | 227919 10 | × | 1 7 |
| X | = | 227919 70 |
| X | = | 3255.985714 |