| ( | 13322 | − | ( | 12812 | − | X | ) | ) | ÷ | ( | 12812 | − | X | ) | = | 1 10 |
| 方程两边同时乘以: | ( | 12812 | − | X | ) |
| ( | 13322 | − | ( | 12812 | − | X | ) | ) | = | 1 10 | ( | 12812 | − | X | ) |
| 13322 | − | ( | 12812 | − | X | ) | = | 1 10 | ( | 12812 | − | X | ) |
| 13322 | − | ( | 12812 | − | X | ) | = | 1 10 | × | 12812 | − | 1 10 | X |
| 13322 | − | ( | 12812 | − | X | ) | = | 6406 5 | − | 1 10 | X |
| 13322 | − | 12812 | + | X | = | 6406 5 | − | 1 10 | X |
| 510 | + | X | = | 6406 5 | − | 1 10 | X |
| X | + | 1 10 | X | = | 6406 5 | − | 510 |
11 10 | X | = | 6406 5 | − | 510 |
11 10 | X | = | 3856 5 |
| X | = | 3856 5 | ÷ | 11 10 |
| = | 3856 5 | × | 10 11 |
| = | 3856 | × | 2 11 |
| X | = | 7712 11 |
| X | = | 701.090909 |