| 1 | ÷ | 3 | × | x | + | ( | x | − | 1 | ÷ | 3 | × | x | ) | × | 5 | ÷ | 8 | + | 30 | = | x |
| Left side of the equation = | 1 3 | x | + | ( | x | − | 1 | ÷ | 3 | × | x | ) | × | 5 8 | + | 30 |
1 3 | x | + | ( | x | − | 1 | ÷ | 3 | × | x | ) | × | 5 8 | + | 30 | = | x |
| Left side of the equation = | 1 3 | x | + | x | × | 5 8 | − | 1 | ÷ | 3 | × | x | × | 5 8 | + | 30 |
| = | 1 3 | x | + | x | × | 5 8 | − | 5 24 | x | + | 30 |
| = | 3 4 | x | + | 30 |
3 4 | x | + | 30 | = | x |
3 4 | x | − | x | = | - | 30 |
| - | 1 4 | x | = | - | 30 |
| 30 | = | 1 4 | x |
1 4 | x | = | 30 |
| x | = | 30 | ÷ | 1 4 |
| = | 30 | × | 4 |
| x | = | 120 |