| 4290 | x | × | 355 | = | 4290 | x | ( | 465 | − | 1 2 | x | ) | + | 360 | × | 804 | × | 430 |
| 方程左边 = | 1522950 | x |
| 1522950 | x | = | 4290 | x | ( | 465 | − | 1 2 | x | ) | + | 360 | × | 804 | × | 430 |
| 方程右边 = | 4290 | x | ( | 465 | − | 1 2 | x | ) | + | 124459200 |
| 1522950 | x | = | 4290 | x | ( | 465 | − | 1 2 | x | ) | + | 124459200 |
| 方程右边 = | 4290 | x | × | 465 | − | 4290 | x | × | 1 2 | x | + | 124459200 |
| = | 1994850 | x | − | 2145 | x | x | + | 124459200 |
| 1522950 | x | = | 1994850 | x | − | 2145 | x | x | + | 124459200 |