| 200 | + | 10000 | x | + | 600 | ( | - | 10000 | x | − | 200 | ÷ | 3 | ) | ÷ | ( | 600 | − | 10000 | x | − | 200 | ÷ | 3 | ) | = | 0 |
| 方程两边同时乘以: | ( | 600 | − | 10000 | x | − | 200 | ÷ | 3 | ) |
| 200 | ( | 600 | − | 10000 | x | − | 200 | ÷ | 3 | ) | + | 10000 | x | ( | 600 | − | 10000 | x | − | 200 | ÷ | 3 | ) | + | 600 | ( | - | 10000 | x | − | 200 | ÷ | 3 | ) | = | 0 |
| 200 | × | 600 | − | 200 | × | 10000 | x | − | 200 | × | 200 | ÷ | 3 | + | 10000 | x | ( | 600 | − | 10000 | x | − | 200 | ÷ | 3 | ) | + | 600 | = | 0 |
| 120000 | − | 2000000 | x | − | 40000 3 | + | 10000 | x | ( | 600 | − | 10000 | x | − | 200 | ÷ | 3 | ) | + | 600 | ( | - | 10000 | x | − | 200 | ÷ | 3 | ) | = | 0 |
320000 3 | − | 2000000 | x | + | 10000 | x | ( | 600 | − | 10000 | x | − | 200 | ÷ | 3 | ) | + | 600 | ( | - | 10000 | x | − | 200 | ÷ | 3 | ) | = | 0 |
320000 3 | − | 2000000 | x | + | 10000 | x | × | 600 | − | 10000 | x | × | 10000 | x | − | 10000 | x | = | 0 |
320000 3 | − | 2000000 | x | + | 6000000 | x | − | 100000000 | x | x | − | 2000000 3 | x | + | 600 | ( | - | 10000 | x | − | 200 | ÷ | 3 | ) | = | 0 |
320000 3 | + | 10000000 3 | x | − | 100000000 | x | x | + | 600 | ( | - | 10000 | x | − | 200 | ÷ | 3 | ) | = | 0 |
320000 3 | + | 10000000 3 | x | − | 100000000 | x | x | − | 600 | × | 10000 | x | − | 600 | × | 200 | ÷ | 3 | = | 0 |
320000 3 | + | 10000000 3 | x | − | 100000000 | x | x | − | 6000000 | x | − | 40000 | = | 0 |
200000 3 | − | 8000000 3 | x | − | 100000000 | x | x | = | 0 |