| ( | x | + | 1 | ) | ( | 8 | ÷ | x | ) | = | ( | x | + | 2 | ) | ( | 5 | ÷ | x | ) |
| x | ( | 8 | ÷ | x | ) | + | 1 | ( | 8 | ÷ | x | ) | = | ( | x | + | 2 | ) | ( | 5 | ÷ | x | ) |
| x | ( | 8 | ÷ | x | ) | + | 1 | ( | 8 | ÷ | x | ) | = | x | ( | 5 | ÷ | x | ) | + | 2 | ( | 5 | ÷ | x | ) |
| 1 | × | 8 | ÷ | 1 | + | 1 | ( | 8 | ÷ | x | ) | = | 1 | ( | 5 | ÷ | 1 | ) | + | 2 | ( | 5 | ÷ | x | ) |
| 1 | × | 8 | ÷ | 1 | + | 1 | ( | 8 | ÷ | x | ) | = | 1 | × | 5 | ÷ | 1 | + | 2 | ( | 5 | ÷ | x | ) |
| 8 | + | 1 | ( | 8 | ÷ | x | ) | = | 5 | + | 2 | ( | 5 | ÷ | x | ) |
| 8 | + | 1 | × | 8 | ÷ | x | = | 5 | + | 2 | ( | 5 | ÷ | x | ) |
| 8 | + | 1 | × | 8 | ÷ | x | = | 5 | + | 2 | × | 5 | ÷ | x |
| 8 | + | 8 | ÷ | x | = | 5 | + | 10 | ÷ | x |
| 方程两边同时乘以: | x |
| 8 | x | + | 8 | = | 5 | x | + | 10 | ÷ | 1 | × | 1 |
| 8 | x | − | 5 | x | = | 10 | ÷ | 1 | × | 1 | − | 8 |
| 8 | x | − | 5 | x | = | 10 | − | 8 |
| 3 | x | = | 10 | − | 8 |
| 3 | x | = | 2 |
| x | = | 2 | ÷ | 3 |
| = | 2 | × | 1 3 |
| x | = | 2 3 |
| x | = | 0.666667 |