| - | 13 | X | × | 2 | − | 32 | X | × | 3 | + | 108 | X | − | 13 | ÷ | 4 | = | 0 |
| Left side of the equation = | - | 26 | X | − | 96 | X | + | 108 | X | − | 13 4 |
| = | - | 14 | X | − | 13 4 |
| - | 14 | X | − | 13 4 | = | 0 |
| - | 14 | X | = | 0 | + | 13 4 |
| - | 14 | X | = | 13 4 |
| - | 13 4 | = | 14 | X |
| 14 | X | = | - | 13 4 |
| X | = | - | 13 4 | ÷ | 14 |
| = | - | 13 4 | × | 1 14 |
| X | = | - | 13 56 |
| X | = | - 0.232143 |