| ( | 4771 10 | − | 42081 100 | ÷ | x | ) | ( | 483 500 | − | 1 20 | ÷ | x | ) | + | 144 | − | 5723 20 | ÷ | x | = | 0 |
| 方程两边同时乘以: | x |
| ( | 4771 10 | − | 42081 100 | ÷ | x | ) | ( | 483 500 | − | 1 20 | ÷ | x | ) | x | + | 144 | x | − | 5723 20 | = | 0 |
4771 10 | ( | 483 500 | − | 1 20 | ÷ | x | ) | x | − | 42081 100 | ÷ | x | × | ( | 483 500 | − | 1 20 | ÷ | x | ) | x | + | 144 | x | − | 5723 20 | = | 0 |
4771 10 | × | 483 500 | x | − | 4771 10 | × | 1 20 | ÷ | x | × | x | − | 42081 100 | ÷ | 1 | × | ( | 483 500 | − | 1 20 | ÷ | x | ) | × | 1 | + | 144 | = | 0 |
2304393 5000 | x | − | 4771 200 | ÷ | x | × | x | − | 42081 100 | ( | 483 500 | − | 1 20 | ÷ | x | ) | + | 144 | x | − | 5723 20 | = | 0 |
3024393 5000 | x | − | 4771 200 | ÷ | x | × | x | − | 42081 100 | ( | 483 500 | − | 1 20 | ÷ | x | ) | − | 5723 20 | = | 0 |
3024393 5000 | x | − | 4771 200 | ÷ | 1 | × | 1 | − | 42081 100 | × | 483 500 | + | 42081 100 | × | 1 20 | ÷ | x | − | 5723 20 | = | 0 |
3024393 5000 | x | − | 4771 200 | − | 20325123 50000 | + | 42081 2000 | ÷ | x | − | 5723 20 | = | 0 |
3024393 5000 | x | − | 35825373 50000 | + | 42081 2000 | ÷ | x | = | 0 |
| 方程两边同时乘以: | x |
3024393 5000 | x | x | − | 35825373 50000 | x | + | 42081 2000 | = | 0 |