6 5 | ( | 11 100 | − | x | ) | + | x | = | 12 100 |
| 方程左边 = | 6 5 | × | 11 100 | − | 6 5 | x | + | x |
| = | 33 250 | − | 6 5 | x | + | x |
| = | 33 250 | − | 1 5 | x |
33 250 | − | 1 5 | x | = | 12 100 |
| - | 1 5 | x | = | 12 100 | − | 33 250 |
| - | 1 5 | x | = | - | 3 250 |
3 250 | = | 1 5 | x |
1 5 | x | = | 3 250 |
| x | = | 3 250 | ÷ | 1 5 |
| = | 3 250 | × | 5 |
| = | 3 50 | × | 1 |
| x | = | 3 50 |
| x | = | 0.06 |