| 10 | ÷ | 102 | + | 4 | ÷ | 447 10 | + | 6 | ÷ | 451 10 | + | ( | 331 5 | − | X | ) | ÷ | 255 2 | + | X | ÷ | 1000 | = | 61 100 |
| 方程左边 = | 5 51 | + | 40 447 | + | 60 451 | + | ( | 331 5 | − | X | ) | × | 2 255 | + | X | × | 1 1000 |
| = | 366205 1142383 | + | ( | 331 5 | − | X | ) | × | 2 255 | + | 1 1000 | X |
366205 1142383 | + | ( | 331 5 | − | X | ) | × | 2 255 | + | 1 1000 | X | = | 61 100 |
| 方程左边 = | 366205 1142383 | + | 331 5 | × | 2 255 | − | X | × | 2 255 | + | 1 1000 | X |
| = | 366205 1142383 | + | 662 1275 | − | X | × | 2 255 | + | 1 1000 | X |
| = | 71951113 85678725 | − | 349 51000 | X |
71951113 85678725 | − | 349 51000 | X | = | 61 100 |
| - | 349 51000 | X | = | 61 100 | − | 71951113 85678725 |
| - | 349 51000 | X | = | - | 78748363 342714900 |
78748363 342714900 | = | 349 51000 | X |
349 51000 | X | = | 78748363 342714900 |
| X | = | 78748363 342714900 | ÷ | 349 51000 |
| = | 78748363 342714900 | × | 51000 349 |
| = | 78748363 1142383 | × | 170 349 |
| X | = | 13387221710 398691667 |