| 7 | ÷ | 5 | ÷ | ( | 1 | ÷ | 3 | × | x | + | 60 | ) | = | 1 |
| 方程两边同时乘以: | ( | 1 | ÷ | 3 | × | x | + | 60 | ) |
| 7 | ÷ | 5 | = | 1 | ( | 1 | ÷ | 3 | × | x | + | 60 | ) |
| 7 | ÷ | 5 | = | 1 | × | 1 | ÷ | 3 | × | x | + | 1 | × | 60 |
7 5 | = | 1 3 | x | + | 60 |
| - | 1 3 | x | = | 60 | − | 7 5 |
| - | 1 3 | x | = | 293 5 |
| - | 293 5 | = | 1 3 | x |
1 3 | x | = | - | 293 5 |
| x | = | - | 293 5 | ÷ | 1 3 |
| = | - | 293 5 | × | 3 |
| x | = | - | 879 5 |
| x | = | - 175.8 |