| 5 | − | 3 | t | − | ( | - | 2 | + | 4 | t | ) | = | 2 | ( | 5 | − | 3 | t | ) | − | ( | 4 | + | t | ) |
| Left side of the equation = | 5 | − | 3 | t | + | 2 | − | 4 | t |
| = | 7 | − | 7 | t |
| 7 | − | 7 | t | = | 2 | ( | 5 | − | 3 | t | ) | − | ( | 4 | + | t | ) |
| Right side of the equation = | 2 | × | 5 | − | 2 | × | 3 | t | − | ( | 4 | + | t | ) |
| = | 10 | − | 6 | t | − | ( | 4 | + | t | ) |
| = | 10 | − | 6 | t | − | 4 | − | t |
| = | 6 | − | 7 | t |
| 7 | − | 7 | t | = | 6 | − | 7 | t |
| - | 7 | t | + | 7 | t | = | 6 | − | 7 |
| - | 0 | t | = | 6 | − | 7 |
| - | 0 | t | = | - | 1 |