1 5 | ( | 1050 | − | x | ) | ÷ | ( | 1050 | + | 2 | x | ) | + | 4 5 | ( | 966 | − | x | ) | ÷ | ( | 966 | + | 2 | x | ) | = | 0 |
| 方程两边同时乘以: | ( | 1050 | + | 2 | x | ) |
1 5 | ( | 1050 | − | x | ) | + | 4 5 | ( | 966 | − | x | ) | ÷ | ( | 966 | + | 2 | x | ) | × | ( | 1050 | + | 2 | x | ) | = | 0 |
1 5 | × | 1050 | − | 1 5 | x | + | 4 5 | ( | 966 | − | x | ) | ÷ | ( | 966 | + | 2 | x | ) | × | ( | 1050 | + | 2 | x | ) | = | 0 |
| 210 | − | 1 5 | x | + | 4 5 | ( | 966 | − | x | ) | ÷ | ( | 966 | + | 2 | x | ) | × | ( | 1050 | + | 2 | x | ) | = | 0 |
| 方程两边同时乘以: | ( | 966 | + | 2 | x | ) |
| 210 | ( | 966 | + | 2 | x | ) | − | 1 5 | x | ( | 966 | + | 2 | x | ) | + | 4 5 | ( | 966 | − | x | ) | ( | 1050 | + | 2 | x | ) | = | 0 |
| 210 | × | 966 | + | 210 | × | 2 | x | − | 1 5 | x | ( | 966 | + | 2 | x | ) | + | 4 5 | ( | 966 | − | x | ) | ( | 1050 | + | 2 | x | ) | = | 0 |
| 202860 | + | 420 | x | − | 1 5 | x | ( | 966 | + | 2 | x | ) | + | 4 5 | ( | 966 | − | x | ) | ( | 1050 | + | 2 | x | ) | = | 0 |
| 202860 | + | 420 | x | − | 1 5 | x | × | 966 | − | 1 5 | x | × | 2 | x | + | 4 5 | ( | 966 | − | x | ) | = | 0 |
| 202860 | + | 420 | x | − | 966 5 | x | − | 2 5 | x | x | + | 4 5 | ( | 966 | − | x | ) | ( | 1050 | + | 2 | x | ) | = | 0 |
| 202860 | + | 1134 5 | x | − | 2 5 | x | x | + | 4 5 | ( | 966 | − | x | ) | ( | 1050 | + | 2 | x | ) | = | 0 |
| 202860 | + | 1134 5 | x | − | 2 5 | x | x | + | 4 5 | × | 966 | ( | 1050 | + | 2 | x | ) | − | 4 5 | x | ( | 1050 | + | 2 | x | ) | = | 0 |
| 202860 | + | 1134 5 | x | − | 2 5 | x | x | + | 3864 5 | ( | 1050 | + | 2 | x | ) | − | 4 5 | x | ( | 1050 | + | 2 | x | ) | = | 0 |
| 202860 | + | 1134 5 | x | − | 2 5 | x | x | + | 3864 5 | × | 1050 | + | 3864 5 | × | 2 | x | − | 4 5 | = | 0 |
| 202860 | + | 1134 5 | x | − | 2 5 | x | x | + | 811440 | + | 7728 5 | x | − | 4 5 | x | ( | 1050 | + | 2 | x | ) | = | 0 |
| 1014300 | + | 8862 5 | x | − | 2 5 | x | x | − | 4 5 | x | ( | 1050 | + | 2 | x | ) | = | 0 |
| 1014300 | + | 8862 5 | x | − | 2 5 | x | x | − | 4 5 | x | × | 1050 | − | 4 5 | x | × | 2 | = | 0 |
| 1014300 | + | 8862 5 | x | − | 2 5 | x | x | − | 840 | x | − | 8 5 | x | x | = | 0 |
| 1014300 | + | 4662 5 | x | − | 2 5 | x | x | − | 8 5 | x | x | = | 0 |