| 2 | x | + | 1 | ÷ | 66 | − | x | − | 66 | ÷ | 1 | = | 3 | x |
| Left side of the equation = | 2 | x | + | 1 66 | − | x | − | 66 |
| = | 1 | x | − | 4355 66 |
| 1 | x | − | 4355 66 | = | 3 | x |
| 1 | x | − | 3 | x | = | 4355 66 |
| - | 2 | x | = | 4355 66 |
| - | 4355 66 | = | 2 | x |
| 2 | x | = | - | 4355 66 |
| x | = | - | 4355 66 | ÷ | 2 |
| = | - | 4355 66 | × | 1 2 |
| x | = | - | 4355 132 |
| x | = | - 32.992424 |