| ( | x | − | 6000 | × | 3 50 | ) | × | 3 4 | ÷ | 3600 | = | ( | x | − | 6000 | × | 3 50 | − | 2400 | × | 2 25 | ) | ÷ | 300 |
| 方程左边 = | ( | x | − | 6000 | × | 3 50 | ) | × | 1 4800 |
| ( | x | − | 6000 | × | 3 50 | ) | × | 1 4800 | = | ( | x | − | 6000 | × | 3 50 | − | 2400 | × | 2 25 | ) | ÷ | 300 |
| 方程左边 = | x | × | 1 4800 | − | 6000 | × | 3 50 | × | 1 4800 |
| = | x | × | 1 4800 | − | 3 40 |
1 4800 | x | − | 3 40 | = | ( | x | − | 6000 | × | 3 50 | − | 2400 | × | 2 25 | ) | ÷ | 300 |
| 方程右边 = | x | × | 1 300 | − | 6000 | × | 3 50 | × | 1 300 | − | 2400 | × | 2 25 | × | 1 300 |
| = | x | × | 1 300 | − | 6 5 | − | 16 25 |
| = | 1 300 | x | − | 46 25 |
1 4800 | x | − | 3 40 | = | 1 300 | x | − | 46 25 |
1 4800 | x | − | 1 300 | x | = | - | 46 25 | + | 3 40 |
| - | 1 320 | x | = | - | 46 25 | + | 3 40 |
| - | 1 320 | x | = | - | 353 200 |
353 200 | = | 1 320 | x |
1 320 | x | = | 353 200 |
| x | = | 353 200 | ÷ | 1 320 |
| = | 353 200 | × | 320 |
| = | 353 5 | × | 8 |
| x | = | 2824 5 |
| x | = | 564.8 |