| X | − | 900 | − | ( | 23 200 | X | − | 50 | X | ÷ | 10000 | ) | × | 11 10 | = | 0 |
| 方程左边 = | X | − | 900 | − | 23 200 | X | × | 11 10 | + | 50 | X | ÷ | 10000 | × | 11 10 |
| = | X | − | 900 | − | 253 2000 | X | + | 11 2000 | X |
| = | 879 1000 | X | − | 900 |
879 1000 | X | − | 900 | = | 0 |
879 1000 | X | = | 0 | + | 900 |
879 1000 | X | = | 900 |
| X | = | 900 | ÷ | 879 1000 |
| = | 900 | × | 1000 879 |
| = | 300 | × | 1000 293 |
| X | = | 300000 293 |
| X | = | 1023.890785 |