| 3 | ÷ | 5 | × | x | = | 6 | ÷ | 11 | × | ( | x | + | 3 | ) |
| 方程左边 = | 3 5 | x |
3 5 | x | = | 6 | ÷ | 11 | × | ( | x | + | 3 | ) |
| 方程右边 = | 6 11 | ( | x | + | 3 | ) |
3 5 | x | = | 6 11 | ( | x | + | 3 | ) |
| 方程右边 = | 6 11 | x | + | 6 11 | × | 3 |
| = | 6 11 | x | + | 18 11 |
3 5 | x | = | 6 11 | x | + | 18 11 |
3 5 | x | − | 6 11 | x | = | 18 11 |
3 55 | x | = | 18 11 |
| x | = | 18 11 | ÷ | 3 55 |
| = | 18 11 | × | 55 3 |
| = | 6 | × | 5 |
| x | = | 30 |