| ( | 7418 | − | x | ) | ÷ | ( | 21951 | − | x | ) | = | 2 25 |
| 方程两边同时乘以: | ( | 21951 | − | x | ) |
| ( | 7418 | − | x | ) | = | 2 25 | ( | 21951 | − | x | ) |
| 7418 | − | x | = | 2 25 | ( | 21951 | − | x | ) |
| 7418 | − | x | = | 2 25 | × | 21951 | − | 2 25 | x |
| 7418 | − | x | = | 43902 25 | − | 2 25 | x |
| - | x | + | 2 25 | x | = | 43902 25 | − | 7418 |
| - | 23 25 | x | = | 43902 25 | − | 7418 |
| - | 23 25 | x | = | - | 141548 25 |
141548 25 | = | 23 25 | x |
23 25 | x | = | 141548 25 |
| x | = | 141548 25 | ÷ | 23 25 |
| = | 141548 25 | × | 25 23 |
| = | 141548 | × | 1 23 |
| x | = | 141548 23 |
| x | = | 6154.26087 |