| 5 | ÷ | 7 | ÷ | ( | 1 | ÷ | 3 | × | x | + | 60 | ) | = | 1 |
| Multiply both sides of the equation by: | ( | 1 | ÷ | 3 | × | x | + | 60 | ) |
| 5 | ÷ | 7 | = | 1 | ( | 1 | ÷ | 3 | × | x | + | 60 | ) |
| 5 | ÷ | 7 | = | 1 | × | 1 | ÷ | 3 | × | x | + | 1 | × | 60 |
5 7 | = | 1 3 | x | + | 60 |
| - | 1 3 | x | = | 60 | − | 5 7 |
| - | 1 3 | x | = | 415 7 |
| - | 415 7 | = | 1 3 | x |
1 3 | x | = | - | 415 7 |
| x | = | - | 415 7 | ÷ | 1 3 |
| = | - | 415 7 | × | 3 |
| x | = | - | 1245 7 |
| x | = | - 177.857143 |