| 3 | x | − | ( | 2 | − | 1 | ÷ | 4 | × | ( | 8 | x | − | 1 | ) | ) | = | 1 |
| 方程左边 = | 3 | x | − | 2 | + | 1 | ÷ | 4 | × | ( | 8 | x | − | 1 | ) |
| = | 3 | x | − | 2 | + | 1 4 | ( | 8 | x | − | 1 | ) |
| = | 3 | x | − | 2 | + | 1 4 | × | 8 | x | − | 1 4 | × | 1 |
| = | 3 | x | − | 2 | + | 2 | x | − | 1 4 |
| = | 5 | x | − | 9 4 |
| 5 | x | − | 9 4 | = | 1 |
| 5 | x | = | 1 | + | 9 4 |
| 5 | x | = | 13 4 |
| x | = | 13 4 | ÷ | 5 |
| = | 13 4 | × | 1 5 |
| x | = | 13 20 |
| x | = | 0.65 |