| 3 | ÷ | ( | a | + | 8 | ) | + | 3 | ÷ | a | = | 3 4 |
| 方程两边同时乘以: | ( | a | + | 8 | ) |
| 3 | + | 3 | ÷ | a | × | ( | a | + | 8 | ) | = | 3 4 | ( | a | + | 8 | ) |
| 3 | + | 3 | ÷ | a | × | a | + | 3 | ÷ | a | × | 8 | = | 3 4 | ( | a | + | 8 | ) |
| 3 | + | 3 | ÷ | a | × | a | + | 3 | ÷ | a | × | 8 | = | 3 4 | a | + | 3 4 | × | 8 |
| 3 | + | 3 | ÷ | a | × | a | + | 24 | ÷ | a | = | 3 4 | a | + | 6 |
| 方程两边同时乘以: | a |
| 3 | a | + | 3 | ÷ | 1 | × | 1 | a | + | 24 | = | 3 4 | a | a | + | 6 | a |