| 5 | ÷ | 2 | × | ( | x | − | 9 | ) | = | 10 | ÷ | 3 |
| 方程左边 = | 5 2 | ( | x | − | 9 | ) |
5 2 | ( | x | − | 9 | ) | = | 10 | ÷ | 3 |
| 方程左边 = | 5 2 | x | − | 5 2 | × | 9 |
| = | 5 2 | x | − | 45 2 |
5 2 | x | − | 45 2 | = | 10 | ÷ | 3 |
| 方程右边 = | 10 3 |
5 2 | x | − | 45 2 | = | 10 3 |
5 2 | x | = | 10 3 | + | 45 2 |
5 2 | x | = | 155 6 |
| x | = | 155 6 | ÷ | 5 2 |
| = | 155 6 | × | 2 5 |
| = | 31 3 | × | 1 |
| x | = | 31 3 |
| x | = | 10.333333 |