| ( | 24 | + | ( | X | − | 60 | ) | × | 7 25 | ) | ÷ | 30 | = | 9 25 |
| 方程左边 = | 24 | × | 1 30 | + | ( | X | − | 60 | ) | × | 7 25 | × | 1 30 |
| = | 4 5 | + | ( | X | − | 60 | ) | × | 7 750 |
| = | 4 5 | + | X | × | 7 750 | − | 60 | × | 7 750 |
| = | 4 5 | + | X | × | 7 750 | − | 14 25 |
| = | 6 25 | + | 7 750 | X |
6 25 | + | 7 750 | X | = | 9 25 |
7 750 | X | = | 9 25 | − | 6 25 |
7 750 | X | = | 3 25 |
| X | = | 3 25 | ÷ | 7 750 |
| = | 3 25 | × | 750 7 |
| = | 3 | × | 30 7 |
| X | = | 90 7 |
| X | = | 12.857143 |