| x | ÷ | 9 10 | + | ( | 36363420 | + | 1081 | x | ) | ÷ | ( | 70753 | − | 2 | x | ) | = | 215000 |
| 方程两边同时乘以: | ( | 70753 | − | 2 | x | ) |
| x | ÷ | 9 10 | × | ( | 70753 | − | 2 | x | ) | + | ( | 36363420 | + | 1081 | x | ) | = | 215000 | ( | 70753 | − | 2 | x | ) |
| x | ÷ | 9 10 | × | 70753 | − | x | ÷ | 9 10 | × | 2 | x | + | ( | 36363420 | + | 1081 | x | ) | = | 215000 | ( | 70753 | − | 2 | x | ) |
| x | ÷ | 9 10 | × | 70753 | − | x | ÷ | 9 10 | × | 2 | x | + | ( | 36363420 | + | 1081 | x | ) | = | 215000 | × | 70753 | − | 215000 | × | 2 | x |