| ( | 3 | x | + | 1 | ) | × | 1 | ÷ | 16 | = | x |
| 方程左边 = | ( | 3 | x | + | 1 | ) | × | 1 16 |
| ( | 3 | x | + | 1 | ) | × | 1 16 | = | x |
| 方程左边 = | 3 | x | × | 1 16 | + | 1 | × | 1 16 |
| = | 3 16 | x | + | 1 16 |
3 16 | x | + | 1 16 | = | x |
3 16 | x | − | x | = | - | 1 16 |
| - | 13 16 | x | = | - | 1 16 |
1 16 | = | 13 16 | x |
13 16 | x | = | 1 16 |
| x | = | 1 16 | ÷ | 13 16 |
| = | 1 16 | × | 16 13 |
| = | 1 | × | 1 13 |
| x | = | 1 13 |
| x | = | 0.076923 |