| 10000000 | ( | 2 | x | − | 1 | ) | ÷ | ( | 2 | x | ) | + | x | − | 1 | = | 10000000 |
| 方程两边同时乘以: | ( | 2 | x | ) |
| 10000000 | ( | 2 | x | − | 1 | ) | + | x | ( | 2 | x | ) | − | 1 | ( | 2 | x | ) | = | 10000000 | ( | 2 | x | ) |
| 10000000 | × | 2 | x | − | 10000000 | × | 1 | + | x | ( | 2 | x | ) | − | 1 | ( | 2 | x | ) | = | 10000000 | ( | 2 | x | ) |
| 10000000 | × | 2 | x | − | 10000000 | × | 1 | + | x | ( | 2 | x | ) | − | 1 | ( | 2 | x | ) | = | 10000000 | × | 2 | x |
| 20000000 | x | − | 10000000 | + | x | ( | 2 | x | ) | − | 1 | ( | 2 | x | ) | = | 20000000 | x |
| 20000000 | x | − | 10000000 | + | x | × | 2 | x | − | 1 | ( | 2 | x | ) | = | 20000000 | x |
| 20000000 | x | − | 10000000 | + | x | × | 2 | x | − | 1 | × | 2 | x | = | 20000000 | x |
| 20000000 | x | − | 10000000 | + | x | × | 2 | x | − | 2 | x | = | 20000000 | x |
| 19999998 | x | − | 10000000 | + | x | × | 2 | x | = | 20000000 | x |