| 8 | − | 6 | t | − | t | = | t | − | ( | - | 4 | + | 2 | t | ) |
| Left side of the equation = | 8 | − | 7 | t |
| 8 | − | 7 | t | = | t | − | ( | - | 4 | + | 2 | t | ) |
| Right side of the equation = | t | + | 4 | − | 2 | t |
| = | - | 1 | t | + | 4 |
| 8 | − | 7 | t | = | - | 1 | t | + | 4 |
| - | 7 | t | + | 1 | t | = | 4 | − | 8 |
| - | 6 | t | = | 4 | − | 8 |
| - | 6 | t | = | - | 4 |
| 4 | = | 6 | t |
| 6 | t | = | 4 |
| t | = | 4 | ÷ | 6 |
| = | 4 | × | 1 6 |
| = | 2 | × | 1 3 |
| t | = | 2 3 |
| t | = | 0.666667 |