| ( | 1 4 | x | + | 16 | ) | ÷ | ( | x | + | 16 | ) | = | 5 | ÷ | 12 |
| 方程两边同时乘以: | ( | x | + | 16 | ) |
| ( | 1 4 | x | + | 16 | ) | = | 5 | ÷ | 12 | × | ( | x | + | 16 | ) |
1 4 | x | + | 16 | = | 5 | ÷ | 12 | × | ( | x | + | 16 | ) |
1 4 | x | + | 16 | = | 5 | ÷ | 12 | × | x | + | 5 | ÷ | 12 | × | 16 |
1 4 | x | + | 16 | = | 5 12 | x | + | 20 3 |
1 4 | x | − | 5 12 | x | = | 20 3 | − | 16 |
| - | 1 6 | x | = | 20 3 | − | 16 |
| - | 1 6 | x | = | - | 28 3 |
28 3 | = | 1 6 | x |
1 6 | x | = | 28 3 |
| x | = | 28 3 | ÷ | 1 6 |
| = | 28 3 | × | 6 |
| = | 28 | × | 2 |
| x | = | 56 |