1 100000 | = | 1 10 | x | ÷ | ( | 1000 | + | x | ) |
| 方程两边同时乘以: | ( | 1000 | + | x | ) |
1 100000 | ( | 1000 | + | x | ) | = | 1 10 | x |
1 100000 | × | 1000 | + | 1 100000 | x | = | 1 10 | x |
1 100 | + | 1 100000 | x | = | 1 10 | x |
1 100000 | x | − | 1 10 | x | = | - | 1 100 |
| - | 9999 100000 | x | = | - | 1 100 |
1 100 | = | 9999 100000 | x |
9999 100000 | x | = | 1 100 |
| x | = | 1 100 | ÷ | 9999 100000 |
| = | 1 100 | × | 100000 9999 |
| = | 1 | × | 1000 9999 |
| x | = | 1000 9999 |
| x | = | 0.10001 |