| 100 | ( | 1147 10 | − | x | ) | ÷ | ( | ( | 124 5 | + | x | ) | x | ) | = | 0 |
| 方程两边同时乘以: | ( | ( | 124 5 | + | x | ) | x | ) |
| 100 | ( | 1147 10 | − | x | ) | = | 0 |
| 100 | × | 1147 10 | − | 100 | x | = | 0 |
| 11470 | − | 100 | x | = | 0 |
| - | 100 | x | = | 0 | − | 11470 |
| - | 100 | x | = | - | 11470 |
| 11470 | = | 100 | x |
| 100 | x | = | 11470 |
| x | = | 11470 | ÷ | 100 |
| = | 11470 | × | 1 100 |
| = | 1147 | × | 1 10 |
| x | = | 1147 10 |
| x | = | 114.7 |