3819 50 | ÷ | x | + | 80 | ÷ | x | ÷ | x | + | 338 5 | ÷ | x | ÷ | x | ÷ | x | + | 4451 50 | ÷ | x | ÷ | x | = | 0 |
| 方程两边同时乘以: | x |
3819 50 | + | 80 | ÷ | 1 | ÷ | x | × | 1 | + | 338 5 | ÷ | 1 | ÷ | x | ÷ | x | × | 1 | + | 4451 50 | ÷ | 1 | = | 0 |
| 方程两边同时乘以: | x |
3819 50 | x | + | 80 | ÷ | 1 | × | 1 | + | 338 5 | ÷ | 1 | ÷ | 1 | ÷ | x | × | 1 | × | 1 | + | 4451 50 | = | 0 |
| 方程两边同时乘以: | x |
3819 50 | x | x | + | 80 | ÷ | 1 | × | 1 | x | + | 338 5 | ÷ | 1 | ÷ | 1 | × | 1 | × | 1 | = | 0 |
| 方程两边同时乘以: | x |
3819 50 | x | x | x | + | 80 | ÷ | 1 | × | 1 | x | x | + | 338 5 | ÷ | 1 | ÷ | 1 | = | 0 |