| ( | x | − | 64 | ) | ÷ | ( | 4240 | − | x | ) | = | 11 10 |
| 方程两边同时乘以: | ( | 4240 | − | x | ) |
| ( | x | − | 64 | ) | = | 11 10 | ( | 4240 | − | x | ) |
| x | − | 64 | = | 11 10 | ( | 4240 | − | x | ) |
| x | − | 64 | = | 11 10 | × | 4240 | − | 11 10 | x |
| x | − | 64 | = | 4664 | − | 11 10 | x |
| x | + | 11 10 | x | = | 4664 | + | 64 |
21 10 | x | = | 4664 | + | 64 |
21 10 | x | = | 4728 |
| x | = | 4728 | ÷ | 21 10 |
| = | 4728 | × | 10 21 |
| = | 1576 | × | 10 7 |
| x | = | 15760 7 |
| x | = | 2251.428571 |