| 120 | ÷ | x | + | ( | 6 | x | − | 120 | ) | ÷ | ( | 1 | + | 25 100 | ) | × | x | = | 6 | − | 40 | ÷ | 60 |
| 方程两边同时乘以: | x |
| 120 | + | ( | 6 | x | − | 120 | ) | ÷ | ( | 1 | + | 25 100 | ) | × | x | x | = | 6 | x | − | 40 | ÷ | 60 | × | x |
| 120 | + | 6 | x | ÷ | ( | 1 | + | 25 100 | ) | × | x | x | − | 120 | ÷ | ( | 1 | + | 25 100 | ) | × | x | x | = | 6 | x | − | 40 | ÷ | 60 | × | x |
| 120 | + | 6 | x | ÷ | ( | 1 | + | 25 100 | ) | × | x | x | − | 120 | ÷ | ( | 1 | + | 25 100 | ) | × | x | x | = | 6 | x | − | 2 3 | x |
| 120 | + | 6 | x | ÷ | ( | 1 | + | 25 100 | ) | × | x | x | − | 120 | ÷ | ( | 1 | + | 25 100 | ) | × | x | x | = | 16 3 | x |
| 方程两边同时乘以: | ( | 1 | + | 25 100 | ) |
| 120 | ( | 1 | + | 25 100 | ) | + | 6 | x | x | x | − | 120 | ÷ | ( | 1 | + | 25 100 | ) | × | x | x | ( | 1 | + | 25 100 | ) | = | 16 3 | x | ( | 1 | + | 25 100 | ) |
| 120 | × | 1 | + | 120 | × | 25 100 | + | 6 | x | x | x | − | 120 | ÷ | ( | 1 | + | 25 100 | ) | × | x | x | = | 16 3 | x | ( | 1 | + | 25 100 | ) |
| 120 | × | 1 | + | 120 | × | 25 100 | + | 6 | x | x | x | − | 120 | ÷ | ( | 1 | + | 25 100 | ) | × | x | x | = | 16 3 | x | × | 1 | + | 16 3 | x | × | 25 100 |
| 120 | + | 30 | + | 6 | x | x | x | − | 120 | ÷ | ( | 1 | + | 25 100 | ) | × | x | x | ( | 1 | + | 25 100 | ) | = | 16 3 | x | + | 4 3 | x |
| 150 | + | 6 | x | x | x | − | 120 | ÷ | ( | 1 | + | 25 100 | ) | × | x | x | ( | 1 | + | 25 100 | ) | = | 20 3 | x |
| 方程两边同时乘以: | ( | 1 | + | 25 100 | ) |
| 150 | ( | 1 | + | 25 100 | ) | + | 6 | x | x | x | ( | 1 | + | 25 100 | ) | − | 120 | x | x | ( | 1 | + | 25 100 | ) | = | 20 3 | x | ( | 1 | + | 25 100 | ) |
| 150 | × | 1 | + | 150 | × | 25 100 | + | 6 | x | x | x | ( | 1 | + | 25 100 | ) | − | 120 | x | x | = | 20 3 | x | ( | 1 | + | 25 100 | ) |
| 150 | × | 1 | + | 150 | × | 25 100 | + | 6 | x | x | x | ( | 1 | + | 25 100 | ) | − | 120 | x | x | = | 20 3 | x | × | 1 | + | 20 3 | x | × | 25 100 |
| 150 | + | 75 2 | + | 6 | x | x | x | ( | 1 | + | 25 100 | ) | − | 120 | x | x | ( | 1 | + | 25 100 | ) | = | 20 3 | x | + | 5 3 | x |
375 2 | + | 6 | x | x | x | ( | 1 | + | 25 100 | ) | − | 120 | x | x | ( | 1 | + | 25 100 | ) | = | 25 3 | x |
375 2 | + | 6 | x | x | x | × | 1 | + | 6 | x | x | x | × | 25 100 | − | 120 | = | 25 3 | x |
375 2 | + | 6 | x | x | x | + | 3 2 | x | x | x | − | 120 | x | x | = | 25 3 | x |
375 2 | + | 6 | x | x | x | + | 3 2 | x | x | x | − | 120 | x | x | = | 25 3 | x |
375 2 | + | 6 | x | x | x | + | 3 2 | x | x | x | − | 120 | x | x | = | 25 3 | x |