| 23 | ( | t | − | 56 | ) | = | 5 | ( | 80 | − | t | ) |
| Left side of the equation = | 23 | t | − | 23 | × | 56 |
| = | 23 | t | − | 1288 |
| 23 | t | − | 1288 | = | 5 | ( | 80 | − | t | ) |
| Right side of the equation = | 5 | × | 80 | − | 5 | t |
| = | 400 | − | 5 | t |
| 23 | t | − | 1288 | = | 400 | − | 5 | t |
| 23 | t | + | 5 | t | = | 400 | + | 1288 |
| 28 | t | = | 400 | + | 1288 |
| 28 | t | = | 1688 |
| t | = | 1688 | ÷ | 28 |
| = | 1688 | × | 1 28 |
| = | 422 | × | 1 7 |
| t | = | 422 7 |
| t | = | 60.285714 |