| ( | 36 | ÷ | ( | x | − | 2 | ) | − | 1 2 | − | 1 10 | ) | ( | x | − | 3 | ) | + | x | = | 39 |
| 36 | ÷ | ( | x | − | 2 | ) | × | ( | x | − | 3 | ) | − | 1 2 | ( | x | − | 3 | ) | − | 1 10 | ( | x | − | 3 | ) | + | x | = | 39 |
| 方程两边同时乘以: | ( | x | − | 2 | ) |
| 36 | ( | x | − | 3 | ) | − | 1 2 | ( | x | − | 3 | ) | ( | x | − | 2 | ) | − | 1 10 | ( | x | − | 3 | ) | ( | x | − | 2 | ) | + | x | ( | x | − | 2 | ) | = | 39 | ( | x | − | 2 | ) |
| 36 | x | − | 36 | × | 3 | − | 1 2 | ( | x | − | 3 | ) | ( | x | − | 2 | ) | − | 1 10 | ( | x | − | 3 | ) | ( | x | − | 2 | ) | + | x | ( | x | − | 2 | ) | = | 39 | ( | x | − | 2 | ) |
| 36 | x | − | 36 | × | 3 | − | 1 2 | ( | x | − | 3 | ) | ( | x | − | 2 | ) | − | 1 10 | ( | x | − | 3 | ) | ( | x | − | 2 | ) | + | x | ( | x | − | 2 | ) | = | 39 | x | − | 39 | × | 2 |
| 36 | x | − | 108 | − | 1 2 | ( | x | − | 3 | ) | ( | x | − | 2 | ) | − | 1 10 | ( | x | − | 3 | ) | ( | x | − | 2 | ) | + | x | ( | x | − | 2 | ) | = | 39 | x | − | 78 |
| 36 | x | − | 108 | − | 1 2 | x | ( | x | − | 2 | ) | + | 1 2 | × | 3 | ( | x | − | 2 | ) | − | 1 10 | ( | x | − | 3 | ) | ( | x | − | 2 | ) | = | 39 | x | − | 78 |
| 36 | x | − | 108 | − | 1 2 | x | ( | x | − | 2 | ) | + | 3 2 | ( | x | − | 2 | ) | − | 1 10 | ( | x | − | 3 | ) | ( | x | − | 2 | ) | + | x | = | 39 | x | − | 78 |
| 36 | x | − | 108 | − | 1 2 | x | x | + | 1 2 | x | × | 2 | + | 3 2 | ( | x | − | 2 | ) | − | 1 10 | = | 39 | x | − | 78 |
| 36 | x | − | 108 | − | 1 2 | x | x | + | 1 | x | + | 3 2 | ( | x | − | 2 | ) | − | 1 10 | ( | x | − | 3 | ) | = | 39 | x | − | 78 |
| 37 | x | − | 108 | − | 1 2 | x | x | + | 3 2 | ( | x | − | 2 | ) | − | 1 10 | ( | x | − | 3 | ) | ( | x | − | 2 | ) | + | x | = | 39 | x | − | 78 |
| 37 | x | − | 108 | − | 1 2 | x | x | + | 3 2 | x | − | 3 2 | × | 2 | − | 1 10 | ( | x | − | 3 | ) | = | 39 | x | − | 78 |
| 37 | x | − | 108 | − | 1 2 | x | x | + | 3 2 | x | − | 3 | − | 1 10 | ( | x | − | 3 | ) | ( | x | − | 2 | ) | = | 39 | x | − | 78 |
77 2 | x | − | 111 | − | 1 2 | x | x | − | 1 10 | ( | x | − | 3 | ) | ( | x | − | 2 | ) | + | x | ( | x | − | 2 | ) | = | 39 | x | − | 78 |
77 2 | x | − | 111 | − | 1 2 | x | x | − | 1 10 | x | ( | x | − | 2 | ) | + | 1 10 | × | 3 | ( | x | − | 2 | ) | = | 39 | x | − | 78 |
77 2 | x | − | 111 | − | 1 2 | x | x | − | 1 10 | x | ( | x | − | 2 | ) | + | 3 10 | ( | x | − | 2 | ) | + | x | = | 39 | x | − | 78 |
77 2 | x | − | 111 | − | 1 2 | x | x | − | 1 10 | x | x | + | 1 10 | x | × | 2 | = | 39 | x | − | 78 |
77 2 | x | − | 111 | − | 1 2 | x | x | − | 1 10 | x | x | + | 1 5 | x | + | 3 10 | = | 39 | x | − | 78 |
387 10 | x | − | 111 | − | 1 2 | x | x | − | 1 10 | x | x | + | 3 10 | ( | x | − | 2 | ) | + | x | = | 39 | x | − | 78 |
387 10 | x | − | 111 | − | 1 2 | x | x | − | 1 10 | x | x | + | 3 10 | x | − | 3 10 | = | 39 | x | − | 78 |
387 10 | x | − | 111 | − | 1 2 | x | x | − | 1 10 | x | x | + | 3 10 | x | − | 3 5 | = | 39 | x | − | 78 |
| 39 | x | − | 558 5 | − | 1 2 | x | x | − | 1 10 | x | x | + | x | ( | x | − | 2 | ) | = | 39 | x | − | 78 |
| 39 | x | − | 558 5 | − | 1 2 | x | x | − | 1 10 | x | x | + | x | x | − | x | = | 39 | x | − | 78 |
| 37 | x | − | 558 5 | − | 1 2 | x | x | − | 1 10 | x | x | + | x | x | = | 39 | x | − | 78 |