| - | 394642 5 | + | 1396927 20 | ÷ | ( | 1 | + | x | ) | + | 757919 20 | ÷ | ( | 1 | + | x | ) | ÷ | ( | 1 | + | x | ) | = | 0 |
| 方程两边同时乘以: | ( | 1 | + | x | ) |
| - | 394642 5 | ( | 1 | + | x | ) | + | 1396927 20 | + | 757919 20 | ÷ | ( | 1 | + | x | ) | = | 0 |
| - | 394642 5 | × | 1 | − | 394642 5 | x | + | 1396927 20 | + | 757919 20 | ÷ | ( | 1 | + | x | ) | = | 0 |
| - | 394642 5 | − | 394642 5 | x | + | 1396927 20 | + | 757919 20 | ÷ | ( | 1 | + | x | ) | = | 0 |
| - | 181641 20 | − | 394642 5 | x | + | 757919 20 | ÷ | ( | 1 | + | x | ) | = | 0 |
| 方程两边同时乘以: | ( | 1 | + | x | ) |
| - | 181641 20 | ( | 1 | + | x | ) | − | 394642 5 | x | ( | 1 | + | x | ) | + | 757919 20 | = | 0 |
| - | 181641 20 | × | 1 | − | 181641 20 | x | − | 394642 5 | x | ( | 1 | + | x | ) | + | 757919 20 | = | 0 |
| - | 181641 20 | − | 181641 20 | x | − | 394642 5 | x | ( | 1 | + | x | ) | + | 757919 20 | = | 0 |
288139 10 | − | 181641 20 | x | − | 394642 5 | x | ( | 1 | + | x | ) | = | 0 |
288139 10 | − | 181641 20 | x | − | 394642 5 | x | × | 1 | − | 394642 5 | x | x | = | 0 |
288139 10 | − | 181641 20 | x | − | 394642 5 | x | − | 394642 5 | x | x | = | 0 |
288139 10 | − | 1760209 20 | x | − | 394642 5 | x | x | = | 0 |