| ( | 44240 | + | 553 100 | x | ) | ÷ | ( | 8000 | + | x | ) | = | 29 5 |
| 方程两边同时乘以: | ( | 8000 | + | x | ) |
| ( | 44240 | + | 553 100 | x | ) | = | 29 5 | ( | 8000 | + | x | ) |
| 44240 | + | 553 100 | x | = | 29 5 | ( | 8000 | + | x | ) |
| 44240 | + | 553 100 | x | = | 29 5 | × | 8000 | + | 29 5 | x |
| 44240 | + | 553 100 | x | = | 46400 | + | 29 5 | x |
553 100 | x | − | 29 5 | x | = | 46400 | − | 44240 |
| - | 27 100 | x | = | 46400 | − | 44240 |
| - | 27 100 | x | = | 2160 |
| - | 2160 | = | 27 100 | x |
27 100 | x | = | - | 2160 |
| x | = | - | 2160 | ÷ | 27 100 |
| = | - | 2160 | × | 100 27 |
| = | - | 80 | × | 100 |
| x | = | - | 8000 |