| x | ÷ | 480 | = | ( | 1000 | − | x | ) | ÷ | 520 | + | 800 | ÷ | 530 |
| 方程右边 = | ( | 1000 | − | x | ) | × | 1 520 | + | 80 53 |
1 480 | x | = | ( | 1000 | − | x | ) | × | 1 520 | + | 80 53 |
| 方程右边 = | 1000 | × | 1 520 | − | x | × | 1 520 | + | 80 53 |
| = | 25 13 | − | x | × | 1 520 | + | 80 53 |
| = | 2365 689 | − | 1 520 | x |
1 480 | x | = | 2365 689 | − | 1 520 | x |
1 480 | x | + | 1 520 | x | = | 2365 689 |
5 1248 | x | = | 2365 689 |
| x | = | 2365 689 | ÷ | 5 1248 |
| = | 2365 689 | × | 1248 5 |
| = | 473 53 | × | 96 |
| x | = | 45408 53 |
| x | = | 856.754717 |