1 2 | x | ( | 1 | − | 1 2 | x | ) | ÷ | ( | 1 | − | x | ) | ÷ | ( | 1 | − | x | ) | = | 153 50 |
| 方程两边同时乘以: | ( | 1 | − | x | ) |
1 2 | x | ( | 1 | − | 1 2 | x | ) | ÷ | ( | 1 | − | x | ) | = | 153 50 | ( | 1 | − | x | ) |
1 2 | x | × | 1 | ÷ | ( | 1 | − | x | ) | − | 1 2 | x | × | 1 2 | x | ÷ | ( | 1 | − | x | ) | = | 153 50 | ( | 1 | − | x | ) |
1 2 | x | × | 1 | ÷ | ( | 1 | − | x | ) | − | 1 2 | x | × | 1 2 | x | ÷ | ( | 1 | − | x | ) | = | 153 50 | × | 1 | − | 153 50 | x |
1 2 | x | ÷ | ( | 1 | − | x | ) | − | 1 4 | x | x | ÷ | ( | 1 | − | x | ) | = | 153 50 | − | 153 50 | x |
| 方程两边同时乘以: | ( | 1 | − | x | ) |
1 2 | x | − | 1 4 | x | x | = | 153 50 | ( | 1 | − | x | ) | − | 153 50 | x | ( | 1 | − | x | ) |
1 2 | x | − | 1 4 | x | x | = | 153 50 | × | 1 | − | 153 50 | x | − | 153 50 | x | ( | 1 | − | x | ) |
1 2 | x | − | 1 4 | x | x | = | 153 50 | − | 153 50 | x | − | 153 50 | x | ( | 1 | − | x | ) |
1 2 | x | − | 1 4 | x | x | = | 153 50 | − | 153 50 | x | − | 153 50 | x | × | 1 | + | 153 50 | x | x |
1 2 | x | − | 1 4 | x | x | = | 153 50 | − | 153 50 | x | − | 153 50 | x | + | 153 50 | x | x |
1 2 | x | − | 1 4 | x | x | = | 153 50 | − | 153 25 | x | + | 153 50 | x | x |