| X | − | 1 25 | X | − | 49500 | − | 1000 | − | 800 | − | 120 | × | 693 100 | × | 7 5 | − | 95 | × | 7 5 | − | 310 | = | 8500 |
| 方程左边 = | X | − | 1 25 | X | − | 49500 | − | 1000 | − | 800 | − | 29106 25 | − | 133 | − | 310 | − | 100 | + | 643500 113 |
| = | 24 25 | X | − | 133657953 2825 |
24 25 | X | − | 133657953 2825 | = | 8500 |
24 25 | X | = | 8500 | + | 133657953 2825 |
24 25 | X | = | 157670453 2825 |
| X | = | 157670453 2825 | ÷ | 24 25 |
| = | 157670453 2825 | × | 25 24 |
| = | 157670453 113 | × | 1 24 |
| X | = | 157670453 2712 |
| X | = | 58138.07264 |