| ( | 62 | + | x | ) | × | 9 10 | ÷ | ( | 74 | + | x | ) | = | 1 |
| 方程两边同时乘以: | ( | 74 | + | x | ) |
| ( | 62 | + | x | ) | × | 9 10 | = | 1 | ( | 74 | + | x | ) |
| 62 | × | 9 10 | + | x | × | 9 10 | = | 1 | ( | 74 | + | x | ) |
| 62 | × | 9 10 | + | x | × | 9 10 | = | 1 | × | 74 | + | 1 | x |
279 5 | + | x | × | 9 10 | = | 74 | + | 1 | x |
9 10 | x | − | 1 | x | = | 74 | − | 279 5 |
| - | 1 10 | x | = | 74 | − | 279 5 |
| - | 1 10 | x | = | 91 5 |
| - | 91 5 | = | 1 10 | x |
1 10 | x | = | - | 91 5 |
| x | = | - | 91 5 | ÷ | 1 10 |
| = | - | 91 5 | × | 10 |
| = | - | 91 | × | 2 |
| x | = | - | 182 |