| x | ÷ | 28 | + | ( | 2 | x | − | 14 | ) | ÷ | 35 | + | 12 | ÷ | 60 | = | x | ÷ | 35 | + | ( | 2 | x | − | 14 | ) | ÷ | 28 |
| 方程左边 = | x | × | 1 28 | + | ( | 2 | x | − | 14 | ) | × | 1 35 | + | 1 5 |
1 28 | x | + | ( | 2 | x | − | 14 | ) | × | 1 35 | + | 1 5 | = | x | ÷ | 35 | + | ( | 2 | x | − | 14 | ) | ÷ | 28 |
| 方程左边 = | 1 28 | x | + | 2 | x | × | 1 35 | − | 14 | × | 1 35 | + | 1 5 |
| = | 1 28 | x | + | 2 35 | x | − | 2 5 | + | 1 5 |
| = | 13 140 | x | − | 1 5 |
13 140 | x | − | 1 5 | = | x | ÷ | 35 | + | ( | 2 | x | − | 14 | ) | ÷ | 28 |
| 方程右边 = | 1 35 | x | + | 2 | x | × | 1 28 | − | 14 | × | 1 28 |
| = | 1 35 | x | + | 1 14 | x | − | 1 2 |
| = | 1 10 | x | − | 1 2 |
13 140 | x | − | 1 5 | = | 1 10 | x | − | 1 2 |
13 140 | x | − | 1 10 | x | = | - | 1 2 | + | 1 5 |
| - | 1 140 | x | = | - | 1 2 | + | 1 5 |
| - | 1 140 | x | = | - | 3 10 |
3 10 | = | 1 140 | x |
1 140 | x | = | 3 10 |
| x | = | 3 10 | ÷ | 1 140 |
| = | 3 10 | × | 140 |
| = | 3 | × | 14 |
| x | = | 42 |