| ( | 5 | ( | 436 | + | x | ) | + | 734 | ) | ÷ | ( | 693 | + | x | ) | = | 223 50 |
| 方程两边同时乘以: | ( | 693 | + | x | ) |
| ( | 5 | ( | 436 | + | x | ) | + | 734 | ) | = | 223 50 | ( | 693 | + | x | ) |
| 5 | ( | 436 | + | x | ) | + | 734 | = | 223 50 | ( | 693 | + | x | ) |
| 5 | ( | 436 | + | x | ) | + | 734 | = | 223 50 | × | 693 | + | 223 50 | x |
| 5 | ( | 436 | + | x | ) | + | 734 | = | 154539 50 | + | 223 50 | x |
| 5 | × | 436 | + | 5 | x | + | 734 | = | 154539 50 | + | 223 50 | x |
| 2180 | + | 5 | x | + | 734 | = | 154539 50 | + | 223 50 | x |
| 2914 | + | 5 | x | = | 154539 50 | + | 223 50 | x |
| 5 | x | − | 223 50 | x | = | 154539 50 | − | 2914 |
27 50 | x | = | 154539 50 | − | 2914 |
27 50 | x | = | 8839 50 |
| x | = | 8839 50 | ÷ | 27 50 |
| = | 8839 50 | × | 50 27 |
| = | 8839 | × | 1 27 |
| x | = | 8839 27 |
| x | = | 327.37037 |