| ( | x | − | 1 | ) | ( | 4 | ÷ | 1 | ) | + | 1 | = | ( | x | − | 3 | ) | ( | 2 | ÷ | 5 | ) |
| 方程左边 = | x | ( | 4 | ÷ | 1 | ) | − | 1 | ( | 4 | ÷ | 1 | ) | + | 1 |
| = | x | × | 4 | ÷ | 1 | − | 1 | ( | 4 | ÷ | 1 | ) | + | 1 |
| = | x | × | 4 | − | 1 | ( | 4 | ÷ | 1 | ) | + | 1 |
| = | 4 | x | − | 1 | × | 4 | ÷ | 1 | + | 1 |
| = | 4 | x | − | 4 | + | 1 |
| = | 4 | x | − | 3 |
| 4 | x | − | 3 | = | ( | x | − | 3 | ) | ( | 2 | ÷ | 5 | ) |
| 方程右边 = | x | ( | 2 | ÷ | 5 | ) | − | 3 | ( | 2 | ÷ | 5 | ) |
| = | x | × | 2 | ÷ | 5 | − | 3 | ( | 2 | ÷ | 5 | ) |
| = | x | × | 2 5 | − | 3 | ( | 2 | ÷ | 5 | ) |
| = | 2 5 | x | − | 3 | × | 2 | ÷ | 5 |
| = | 2 5 | x | − | 6 5 |
| 4 | x | − | 3 | = | 2 5 | x | − | 6 5 |
| 4 | x | − | 2 5 | x | = | - | 6 5 | + | 3 |
18 5 | x | = | - | 6 5 | + | 3 |
18 5 | x | = | 9 5 |
| x | = | 9 5 | ÷ | 18 5 |
| = | 9 5 | × | 5 18 |
| = | 1 | × | 1 2 |
| x | = | 1 2 |
| x | = | 0.5 |