| X | ÷ | 136 | − | 100 | ÷ | 447 10 | − | 480 | ÷ | 500 | − | 12 25 | − | 240 | ÷ | 1650 | = | 119 50000 | ( | 1300 | + | X | ) |
| 方程左边 = | X | × | 1 136 | − | 1000 447 | − | 24 25 | − | 12 25 | − | 8 55 |
| = | 1 136 | X | − | 469892 122925 |
1 136 | X | − | 469892 122925 | = | 119 50000 | ( | 1300 | + | X | ) |
| 方程右边 = | 119 50000 | × | 1300 | + | 119 50000 | X |
| = | 1547 500 | + | 119 50000 | X |
1 136 | X | − | 469892 122925 | = | 1547 500 | + | 119 50000 | X |
1 136 | X | − | 119 50000 | X | = | 1547 500 | + | 469892 122925 |
4227 850000 | X | = | 1547 500 | + | 469892 122925 |
4227 850000 | X | = | 17004439 2458500 |
| X | = | 17004439 2458500 | ÷ | 4227 850000 |
| = | 17004439 2458500 | × | 850000 4227 |
| = | 17004439 4917 | × | 1700 4227 |
| X | = | 28907546300 20784159 |