| x | = | ( | x | + | ( | x | + | 8 | ) | ( | 1 | ÷ | 5 | ) | ) | ( | 5 | ÷ | 4 | ) | − | 8 |
| 方程右边 = | x | ( | 5 | ÷ | 4 | ) | + | ( | x | + | 8 | ) | ( | 1 | ÷ | 5 | ) | ( | 5 | ÷ | 4 | ) | − | 8 |
| = | x | × | 5 | ÷ | 4 | + | ( | x | + | 8 | ) | ( | 1 | ÷ | 5 | ) | ( | 5 | ÷ | 4 | ) | − | 8 |
| = | x | × | 5 4 | + | ( | x | + | 8 | ) | ( | 1 | ÷ | 5 | ) | ( | 5 | ÷ | 4 | ) | − | 8 |
| = | 5 4 | x | + | x | ( | 1 | ÷ | 5 | ) | ( | 5 | ÷ | 4 | ) | + | 8 | ( | 1 | ÷ | 5 | ) | ( | 5 | ÷ | 4 | ) | − | 8 |
| = | 5 4 | x | + | x | × | 1 | ÷ | 5 | × | ( | 5 | ÷ | 4 | ) | + | 8 | ( | 1 | ÷ | 5 | ) | ( | 5 | ÷ | 4 | ) | − | 8 |
| = | 5 4 | x | + | x | × | 1 5 | ( | 5 | ÷ | 4 | ) | + | 8 | ( | 1 | ÷ | 5 | ) | ( | 5 | ÷ | 4 | ) | − | 8 |
| = | 5 4 | x | + | x | × | 1 5 | × | 5 | ÷ | 4 | + | 8 | ( | 1 | ÷ | 5 | ) | ( | 5 | ÷ | 4 | ) | − | 8 |
| = | 5 4 | x | + | x | × | 1 4 | + | 8 | ( | 1 | ÷ | 5 | ) | ( | 5 | ÷ | 4 | ) | − | 8 |
| = | 3 2 | x | + | 8 | ( | 1 | ÷ | 5 | ) | ( | 5 | ÷ | 4 | ) | − | 8 |
| = | 3 2 | x | + | 8 | × | 1 | ÷ | 5 | × | ( | 5 | ÷ | 4 | ) | − | 8 |
| = | 3 2 | x | + | 8 5 | ( | 5 | ÷ | 4 | ) | − | 8 |
| = | 3 2 | x | + | 8 5 | × | 5 | ÷ | 4 | − | 8 |
| = | 3 2 | x | + | 2 | − | 8 |
| = | 3 2 | x | − | 6 |
| x | = | 3 2 | x | − | 6 |
| x | − | 3 2 | x | = | - | 6 |
| - | 1 2 | x | = | - | 6 |
| 6 | = | 1 2 | x |
1 2 | x | = | 6 |
| x | = | 6 | ÷ | 1 2 |
| = | 6 | × | 2 |
| x | = | 12 |