3 8 | ( | 75 100 | − | x | ) | = | 5 | ÷ | 16 |
| 方程左边 = | 3 8 | × | 75 100 | − | 3 8 | x |
| = | 9 32 | − | 3 8 | x |
9 32 | − | 3 8 | x | = | 5 | ÷ | 16 |
| 方程右边 = | 5 16 |
9 32 | − | 3 8 | x | = | 5 16 |
| - | 3 8 | x | = | 5 16 | − | 9 32 |
| - | 3 8 | x | = | 1 32 |
| - | 1 32 | = | 3 8 | x |
3 8 | x | = | - | 1 32 |
| x | = | - | 1 32 | ÷ | 3 8 |
| = | - | 1 32 | × | 8 3 |
| = | - | 1 4 | × | 1 3 |
| x | = | - | 1 12 |
| x | = | - 0.083333 |