3 10 | = | ( | 23 25 | − | x | ) | ÷ | ( | 1 | − | x | ) |
| 方程两边同时乘以: | ( | 1 | − | x | ) |
3 10 | ( | 1 | − | x | ) | = | ( | 23 25 | − | x | ) |
3 10 | × | 1 | − | 3 10 | x | = | ( | 23 25 | − | x | ) |
3 10 | × | 1 | − | 3 10 | x | = | 23 25 | − | x |
3 10 | − | 3 10 | x | = | 23 25 | − | x |
| - | 3 10 | x | + | x | = | 23 25 | − | 3 10 |
| - | - | 7 10 | x | = | 23 25 | − | 3 10 |
| - | - | 7 10 | x | = | 31 50 |
| - | 31 50 | = | - | 7 10 | x |
| - | 7 10 | x | = | - | 31 50 |
| x | = | 31 50 | ÷ | 7 10 |
| = | 31 50 | × | 10 7 |
| = | 31 5 | × | 1 7 |
| x | = | 31 35 |
| x | = | 0.885714 |