| ( | 650 | ( | 1 | + | 15 100 | ) | ) | + | ( | x | × | 4 100 | ) | = | x |
| 方程左边 = | 650 | ( | 1 | + | 15 100 | ) | + | ( | x | × | 4 100 | ) |
| = | 650 | × | 1 | + | 650 | × | 15 100 | + | ( | x | × | 4 100 | ) |
| = | 650 | + | 195 2 | + | ( | x | × | 4 100 | ) |
| = | 1495 2 | + | ( | x | × | 4 100 | ) |
| = | 1495 2 | + | x | × | 4 100 |
1495 2 | + | 4 100 | x | = | x |
4 100 | x | − | x | = | - | 1495 2 |
| - | 24 25 | x | = | - | 1495 2 |
1495 2 | = | 24 25 | x |
24 25 | x | = | 1495 2 |
| x | = | 1495 2 | ÷ | 24 25 |
| = | 1495 2 | × | 25 24 |
| x | = | 37375 48 |
| x | = | 778.645833 |