| ( | x | − | 9 100 | ) | ÷ | 1 100 | = | 1011 100 | ÷ | 3391 100 |
| 方程左边 = | x | × | 100 | − | 9 100 | × | 100 |
| = | x | × | 100 | − | 9 |
| 100 | x | − | 9 | = | 1011 100 | ÷ | 3391 100 |
| 方程右边 = | 1011 3391 |
| 100 | x | − | 9 | = | 1011 3391 |
| 100 | x | = | 1011 3391 | + | 9 |
| 100 | x | = | 31530 3391 |
| x | = | 31530 3391 | ÷ | 100 |
| = | 31530 3391 | × | 1 100 |
| = | 3153 3391 | × | 1 10 |
| x | = | 3153 33910 |
| x | = | 0.092981 |