| ( | X | − | 10193 10 | − | 5000 | ) | × | 3 100 | = | X | − | 484653 50 | − | 10193 10 |
| 方程左边 = | X | × | 3 100 | − | 10193 10 | × | 3 100 | − | 5000 | × | 3 100 |
| = | X | × | 3 100 | − | 30579 1000 | − | 150 |
| = | 3 100 | X | − | 180579 1000 |
3 100 | X | − | 180579 1000 | = | X | − | 484653 50 | − | 10193 10 |
| 方程右边 = | X | − | 267809 25 |
3 100 | X | − | 180579 1000 | = | X | − | 267809 25 |
3 100 | X | − | X | = | - | 267809 25 | + | 180579 1000 |
| - | 97 100 | X | = | - | 267809 25 | + | 180579 1000 |
| - | 97 100 | X | = | - | 10531781 1000 |
10531781 1000 | = | 97 100 | X |
97 100 | X | = | 10531781 1000 |
| X | = | 10531781 1000 | ÷ | 97 100 |
| = | 10531781 1000 | × | 100 97 |
| = | 10531781 10 | × | 1 97 |
| X | = | 10531781 970 |
| X | = | 10857.506186 |