| 2 | ( | - | 4 | ÷ | 11 | + | 4 | ) | + | 3 | x | = | 7 | − | 2 | x | + | 4 | ÷ | 11 | × | x | − | 4 |
| 方程左边 = | - | 2 | × | 4 | ÷ | 11 | + | 2 | × | 4 | + | 3 | x |
| = | - | 8 11 | + | 8 | + | 3 | x |
| = | 80 11 | + | 3 | x |
80 11 | + | 3 | x | = | 7 | − | 2 | x | + | 4 | ÷ | 11 | × | x | − | 4 |
| 方程右边 = | 7 | − | 2 | x | + | 4 11 | x | − | 4 |
| = | 3 | − | 18 11 | x |
80 11 | + | 3 | x | = | 3 | − | 18 11 | x |
| 3 | x | + | 18 11 | x | = | 3 | − | 80 11 |
51 11 | x | = | 3 | − | 80 11 |
51 11 | x | = | - | 47 11 |
| x | = | - | 47 11 | ÷ | 51 11 |
| = | - | 47 11 | × | 11 51 |
| = | - | 47 | × | 1 51 |
| x | = | - | 47 51 |
| x | = | - 0.921569 |