128 625 | x | + | 529 5000 | x | − | 138 3125 | x | − | 2093 25000 | = | 0 |
| 方程左边 = | 6661 25000 | x | − | 2093 25000 |
6661 25000 | x | − | 2093 25000 | = | 0 |
6661 25000 | x | = | 0 | + | 2093 25000 |
6661 25000 | x | = | 2093 25000 |
| x | = | 2093 25000 | ÷ | 6661 25000 |
| = | 2093 25000 | × | 25000 6661 |
| = | 2093 | × | 1 6661 |
| x | = | 2093 6661 |
| x | = | 0.314217 |