| 100 | × | 3 | ÷ | 5 | + | ( | 100 | × | 3 | ÷ | 5 | + | 6 | ) | − | x | = | 100 | − | ( | x | ÷ | 3 | + | 2 | ) |
| 方程左边 = | 60 | + | ( | 100 | × | 3 | ÷ | 5 | + | 6 | ) | − | x |
| 60 | + | ( | 100 | × | 3 | ÷ | 5 | + | 6 | ) | − | x | = | 100 | − | ( | x | ÷ | 3 | + | 2 | ) |
| 方程左边 = | 60 | + | 100 | × | 3 | ÷ | 5 | + | 6 | − | x |
| = | 60 | + | 60 | + | 6 | − | x |
| = | 126 | − | x |
| 126 | − | x | = | 100 | − | ( | x | ÷ | 3 | + | 2 | ) |
| 方程右边 = | 100 | − | x | ÷ | 3 | − | 2 |
| = | 98 | − | 1 3 | x |
| 126 | − | x | = | 98 | − | 1 3 | x |
| - | x | + | 1 3 | x | = | 98 | − | 126 |
| - | 2 3 | x | = | 98 | − | 126 |
| - | 2 3 | x | = | - | 28 |
| 28 | = | 2 3 | x |
2 3 | x | = | 28 |
| x | = | 28 | ÷ | 2 3 |
| = | 28 | × | 3 2 |
| = | 14 | × | 3 |
| x | = | 42 |