| ( | 37591 50 | − | X | − | 26529 25 | ) | ÷ | 26529 25 | = | ( | 35253 100 | + | X | − | 30691 50 | ) | ÷ | 30691 50 |
| 方程左边 = | 37591 50 | × | 25 26529 | − | X | × | 25 26529 | − | 26529 25 | × | 25 26529 |
| = | 37591 53058 | − | X | × | 25 26529 | − | 1 |
| = | - | 15467 53058 | − | 25 26529 | X |
| - | 15467 53058 | − | 25 26529 | X | = | ( | 35253 100 | + | X | − | 30691 50 | ) | ÷ | 30691 50 |
| 方程右边 = | 35253 100 | × | 50 30691 | + | X | × | 50 30691 | − | 30691 50 | × | 50 30691 |
| = | 35253 61382 | + | X | × | 50 30691 | − | 1 |
| = | - | 26129 61382 | + | 50 30691 | X |
| - | 15467 53058 | − | 25 26529 | X | = | - | 26129 61382 | + | 50 30691 | X |
| - | 25 26529 | X | − | 50 30691 | X | = | - | 26129 61382 | + | 15467 53058 |
| - | 2093725 814201539 | X | = | - | 26129 61382 | + | 15467 53058 |
| - | 2093725 814201539 | X | = | - | 109239272 814201539 |
109239272 814201539 | = | 2093725 814201539 | X |
2093725 814201539 | X | = | 109239272 814201539 |
| X | = | 109239272 814201539 | ÷ | 2093725 814201539 |
| = | 109239272 814201539 | × | 814201539 2093725 |
| = | 109239272 653 | × | 653 2093725 |
| X | = | 71333244616 1367202425 |