| x | + | x | × | 1 10 | + | ( | x | × | 1 10 | ) | × | 9 100 | = | 57251400 |
| 方程左边 = | 11 10 | x | + | ( | x | × | 1 10 | ) | × | 9 100 |
11 10 | x | + | ( | x | × | 1 10 | ) | × | 9 100 | = | 57251400 |
| 方程左边 = | 11 10 | x | + | x | × | 1 10 | × | 9 100 |
| = | 11 10 | x | + | x | × | 9 1000 |
| = | 1109 1000 | x |
1109 1000 | x | = | 57251400 |
| x | = | 57251400 | ÷ | 1109 1000 |
| = | 57251400 | × | 1000 1109 |
| x | = | 57251400000 1109 |