| - | 1 | ÷ | 4 | × | X | − | 4 | = | 7 | ÷ | 6 | × | X | − | 3 |
| Left side of the equation = | - | 1 4 | X | − | 4 |
| - | 1 4 | X | − | 4 | = | 7 | ÷ | 6 | × | X | − | 3 |
| Right side of the equation = | 7 6 | X | − | 3 |
| - | 1 4 | X | − | 4 | = | 7 6 | X | − | 3 |
| - | 1 4 | X | − | 7 6 | X | = | - | 3 | + | 4 |
| - | 17 12 | X | = | - | 3 | + | 4 |
| - | 17 12 | X | = | 1 |
| - | 1 | = | 17 12 | X |
17 12 | X | = | - | 1 |
| X | = | - | 1 | ÷ | 17 12 |
| = | - | 1 | × | 12 17 |
| X | = | - | 12 17 |
| X | = | - 0.705882 |