| 230 | ÷ | x | = | 256 | ÷ | ( | x | + | 100 | ) |
| 方程两边同时乘以: | x | , | ( | x | + | 100 | ) |
| 230 | ( | x | + | 100 | ) | = | 256 | x |
| 230 | x | + | 230 | × | 100 | = | 256 | x |
| 230 | x | + | 23000 | = | 256 | x |
| 230 | x | − | 256 | x | = | - | 23000 |
| - | 26 | x | = | - | 23000 |
| 23000 | = | 26 | x |
| 26 | x | = | 23000 |
| x | = | 23000 | ÷ | 26 |
| = | 23000 | × | 1 26 |
| = | 11500 | × | 1 13 |
| x | = | 11500 13 |
| x | = | 884.615385 |