| 8 | ( | 4 | x | − | 1 | ) | ÷ | 4 | = | ( | 2 | x | + | 1 | ) |
| 方程左边 = | 2 | ( | 4 | x | − | 1 | ) |
| 2 | ( | 4 | x | − | 1 | ) | = | ( | 2 | x | + | 1 | ) |
| 方程左边 = | 2 | × | 4 | x | − | 2 | × | 1 |
| = | 8 | x | − | 2 |
| 8 | x | − | 2 | = | ( | 2 | x | + | 1 | ) |
| 方程右边 = | 2 | x | + | 1 |
| 8 | x | − | 2 | = | 2 | x | + | 1 |
| 8 | x | − | 2 | x | = | 1 | + | 2 |
| 6 | x | = | 1 | + | 2 |
| 6 | x | = | 3 |
| x | = | 3 | ÷ | 6 |
| = | 3 | × | 1 6 |
| = | 1 | × | 1 2 |
| x | = | 1 2 |
| x | = | 0.5 |