| 17 | ( | t | − | 56 | ) | = | 11 | ( | 80 | − | t | ) |
| Left side of the equation = | 17 | t | − | 17 | × | 56 |
| = | 17 | t | − | 952 |
| 17 | t | − | 952 | = | 11 | ( | 80 | − | t | ) |
| Right side of the equation = | 11 | × | 80 | − | 11 | t |
| = | 880 | − | 11 | t |
| 17 | t | − | 952 | = | 880 | − | 11 | t |
| 17 | t | + | 11 | t | = | 880 | + | 952 |
| 28 | t | = | 880 | + | 952 |
| 28 | t | = | 1832 |
| t | = | 1832 | ÷ | 28 |
| = | 1832 | × | 1 28 |
| = | 458 | × | 1 7 |
| t | = | 458 7 |
| t | = | 65.428571 |