193 50 | x | + | 108 25 | ( | 1 | − | x | ) | = | 203 50 |
| 方程左边 = | 193 50 | x | + | 108 25 | × | 1 | − | 108 25 | x |
| = | 193 50 | x | + | 108 25 | − | 108 25 | x |
| = | - | 23 50 | x | + | 108 25 |
| - | 23 50 | x | + | 108 25 | = | 203 50 |
| - | 23 50 | x | = | 203 50 | − | 108 25 |
| - | 23 50 | x | = | - | 13 50 |
13 50 | = | 23 50 | x |
23 50 | x | = | 13 50 |
| x | = | 13 50 | ÷ | 23 50 |
| = | 13 50 | × | 50 23 |
| = | 13 | × | 1 23 |
| x | = | 13 23 |
| x | = | 0.565217 |