| 5 | ( | x | + | 3 | ÷ | 2 | ) | = | 10 |
| 方程左边 = | 5 | x | + | 5 | × | 3 | ÷ | 2 |
| = | 5 | x | + | 15 2 |
| 5 | x | + | 15 2 | = | 10 |
| 5 | x | = | 10 | − | 15 2 |
| 5 | x | = | 5 2 |
| x | = | 5 2 | ÷ | 5 |
| = | 5 2 | × | 1 5 |
| = | 1 2 | × | 1 |
| x | = | 1 2 |
| x | = | 0.5 |
| 5 | ÷ | 6 | × | x | = | 7 | ÷ | 20 | − | 5 | ÷ | 8 | × | x |
| 方程左边 = | 5 6 | x |
5 6 | x | = | 7 | ÷ | 20 | − | 5 | ÷ | 8 | × | x |
| 方程右边 = | 7 20 | − | 5 8 | x |
5 6 | x | = | 7 20 | − | 5 8 | x |
5 6 | x | + | 5 8 | x | = | 7 20 |
35 24 | x | = | 7 20 |
| x | = | 7 20 | ÷ | 35 24 |
| = | 7 20 | × | 24 35 |
| = | 1 5 | × | 6 5 |
| x | = | 6 25 |
| x | = | 0.24 |
| 1 | ÷ | 10 | ÷ | x | = | 4 | ÷ | 8 |
| 方程两边同时乘以: | x |
| 1 | ÷ | 10 | = | 4 | ÷ | 8 | × | x |
| - | 4 | ÷ | 8 | × | x | = | - | 1 | ÷ | 10 |
| - | 1 2 | x | = | - | 1 | ÷ | 10 |
| - | 1 2 | x | = | - | 1 10 |
1 10 | = | 1 2 | x |
1 2 | x | = | 1 10 |
| x | = | 1 10 | ÷ | 1 2 |
| = | 1 10 | × | 2 |
| = | 1 5 | × | 1 |
| x | = | 1 5 |
| x | = | 0.2 |