| 14 | ÷ | ( | x | + | 14 | ) | − | 12 | ÷ | ( | x | + | 12 | ) | = | 3 100 |
| 方程两边同时乘以: | ( | x | + | 14 | ) |
| 14 | − | 12 | ÷ | ( | x | + | 12 | ) | × | ( | x | + | 14 | ) | = | 3 100 | ( | x | + | 14 | ) |
| 14 | − | 12 | ÷ | ( | x | + | 12 | ) | × | x | − | 12 | ÷ | ( | x | + | 12 | ) | × | 14 | = | 3 100 | ( | x | + | 14 | ) |
| 14 | − | 12 | ÷ | ( | x | + | 12 | ) | × | x | − | 12 | ÷ | ( | x | + | 12 | ) | × | 14 | = | 3 100 | x | + | 3 100 | × | 14 |
| 14 | − | 12 | ÷ | ( | x | + | 12 | ) | × | x | − | 168 | ÷ | ( | x | + | 12 | ) | = | 3 100 | x | + | 21 50 |
| 方程两边同时乘以: | ( | x | + | 12 | ) |
| 14 | ( | x | + | 12 | ) | − | 12 | x | − | 168 | = | 3 100 | x | ( | x | + | 12 | ) | + | 21 50 | ( | x | + | 12 | ) |
| 14 | x | + | 14 | × | 12 | − | 12 | x | − | 168 | = | 3 100 | x | ( | x | + | 12 | ) | + | 21 50 | ( | x | + | 12 | ) |
| 14 | x | + | 14 | × | 12 | − | 12 | x | − | 168 | = | 3 100 | x | x | + | 3 100 | x | × | 12 | + | 21 50 | ( | x | + | 12 | ) |
| 14 | x | + | 168 | − | 12 | x | − | 168 | = | 3 100 | x | x | + | 9 25 | x | + | 21 50 | ( | x | + | 12 | ) |
| 2 | x | + | 0 | = | 3 100 | x | x | + | 9 25 | x | + | 21 50 | ( | x | + | 12 | ) |
| 2 | x | = | 3 100 | x | x | + | 9 25 | x | + | 21 50 | x | + | 21 50 | × | 12 |
| 2 | x | = | 3 100 | x | x | + | 9 25 | x | + | 21 50 | x | + | 126 25 |
| 2 | x | = | 3 100 | x | x | + | 39 50 | x | + | 126 25 |
| x1= | 14 3 |
| x2=36 |