3 10 | = | ( | 4143 5000 | − | x | ) | ÷ | ( | 1 | − | x | ) |
| 方程两边同时乘以: | ( | 1 | − | x | ) |
3 10 | ( | 1 | − | x | ) | = | ( | 4143 5000 | − | x | ) |
3 10 | × | 1 | − | 3 10 | x | = | ( | 4143 5000 | − | x | ) |
3 10 | × | 1 | − | 3 10 | x | = | 4143 5000 | − | x |
3 10 | − | 3 10 | x | = | 4143 5000 | − | x |
| - | 3 10 | x | + | x | = | 4143 5000 | − | 3 10 |
| - | - | 7 10 | x | = | 4143 5000 | − | 3 10 |
| - | - | 7 10 | x | = | 2643 5000 |
| - | 2643 5000 | = | - | 7 10 | x |
| - | 7 10 | x | = | - | 2643 5000 |
| x | = | 2643 5000 | ÷ | 7 10 |
| = | 2643 5000 | × | 10 7 |
| = | 2643 500 | × | 1 7 |
| x | = | 2643 3500 |
| x | = | 0.755143 |