| ( | x | + | 18250 | ) | + | ( | x | + | 18250 | ) | × | 3 50 | = | 0 |
| 方程左边 = | x | + | 18250 | + | ( | x | + | 18250 | ) | × | 3 50 |
| = | x | + | 18250 | + | x | × | 3 50 | + | 18250 | × | 3 50 |
| = | x | + | 18250 | + | x | × | 3 50 | + | 1095 |
| = | 53 50 | x | + | 19345 |
53 50 | x | + | 19345 | = | 0 |
53 50 | x | = | 0 | − | 19345 |
53 50 | x | = | - | 19345 |
| x | = | - | 19345 | ÷ | 53 50 |
| = | - | 19345 | × | 50 53 |
| = | - | 365 | × | 50 |
| x | = | - | 18250 |