11 10 | × | 68606 5 | = | 112 5 | × | 2200 | x | ( | 2420 | − | x | ÷ | 2 | ) |
| 方程左边 = | 377333 25 |
377333 25 | = | 112 5 | × | 2200 | x | ( | 2420 | − | x | ÷ | 2 | ) |
| 方程右边 = | 49280 | x | ( | 2420 | − | x | ÷ | 2 | ) |
377333 25 | = | 49280 | x | ( | 2420 | − | x | ÷ | 2 | ) |
| 方程右边 = | 49280 | x | × | 2420 | − | 49280 | x | x | ÷ | 2 |
| = | 119257600 | x | − | 24640 | x | x |
377333 25 | = | 119257600 | x | − | 24640 | x | x |