| ( | 4 | x | − | 2 | ) | ÷ | 41 20 | + | 3 | = | 94 100 |
| 方程左边 = | 4 | x | × | 20 41 | − | 2 | × | 20 41 | + | 3 |
| = | 80 41 | x | − | 40 41 | + | 3 |
| = | 80 41 | x | + | 83 41 |
80 41 | x | + | 83 41 | = | 94 100 |
80 41 | x | = | 94 100 | − | 83 41 |
80 41 | x | = | - | 2223 2050 |
| x | = | - | 2223 2050 | ÷ | 80 41 |
| = | - | 2223 2050 | × | 41 80 |
| = | - | 2223 50 | × | 1 80 |
| x | = | - | 2223 4000 |
| x | = | - 0.55575 |