| x | − | 13 10 | − | x | + | 13 5 | = | 1 | − | 2 | x | − | 6 5 |
| Left side of the equation = | 0 | x | + | 13 10 |
| 0 | x | + | 13 10 | = | 1 | − | 2 | x | − | 6 5 |
| Right side of the equation = | - | 1 5 | − | 2 | x |
| 0 | x | + | 13 10 | = | - | 1 5 | − | 2 | x |
| 2 | x | = | - | 1 5 | − | 13 10 |
| 2 | x | = | - | 3 2 |
| x | = | - | 3 2 | ÷ | 2 |
| = | - | 3 2 | × | 1 2 |
| x | = | - | 3 4 |
| x | = | - 0.75 |