| - | 37387 10000 | + | ( | 219501 100 | × | 9 10000 | ) | ÷ | ( | 9 10000 | + | x | ) | = | 7503 10000 | − | 3781 5000 | x |
| 方程两边同时乘以: | ( | 9 10000 | + | x | ) |
| - | 37387 10000 | ( | 9 10000 | + | x | ) | + | ( | 219501 100 | × | 9 10000 | ) | = | 7503 10000 | ( | 9 10000 | + | x | ) | − | 3781 5000 | x | ( | 9 10000 | + | x | ) |
| - | 37387 10000 | × | 9 10000 | − | 37387 10000 | x | + | ( | 219501 100 | × | 9 10000 | ) | = | 7503 10000 | ( | 9 10000 | + | x | ) | − | 3781 5000 | x | ( | 9 10000 | + | x | ) |
| - | 37387 10000 | × | 9 10000 | − | 37387 10000 | x | + | ( | 219501 100 | × | 9 10000 | ) | = | 7503 10000 | × | 9 10000 | + | 7503 10000 | x | − | 3781 5000 | x | ( | 9 10000 | + | x | ) |
| - | 336483 100000000 | − | 37387 10000 | x | + | ( | 219501 100 | × | 9 10000 | ) | = | 67527 100000000 | + | 7503 10000 | x | − | 3781 5000 | x | ( | 9 10000 | + | x | ) |
| - | 336483 100000000 | − | 37387 10000 | x | + | 219501 100 | × | 9 10000 | = | 67527 100000000 | + | 7503 10000 | x | − | 3781 5000 | x | ( | 9 10000 | + | x | ) |
| - | 336483 100000000 | − | 37387 10000 | x | + | 219501 100 | × | 9 10000 | = | 67527 100000000 | + | 7503 10000 | x | − | 3781 5000 | x | × | 9 10000 | − | 3781 5000 | x | x |
| - | 336483 100000000 | − | 37387 10000 | x | + | 1975509 1000000 | = | 67527 100000000 | + | 7503 10000 | x | − | 34029 50000000 | x | − | 3781 5000 | x | x |