81549 250 | ÷ | ( | n | − | 2 | ) | = | 492 | ÷ | ( | n | − | 1 | ) |
| 方程两边同时乘以: | ( | n | − | 2 | ) | , | ( | n | − | 1 | ) |
81549 250 | ( | n | − | 1 | ) | = | 492 | ( | n | − | 2 | ) |
81549 250 | n | − | 81549 250 | × | 1 | = | 492 | ( | n | − | 2 | ) |
81549 250 | n | − | 81549 250 | × | 1 | = | 492 | n | − | 492 | × | 2 |
81549 250 | n | − | 81549 250 | = | 492 | n | − | 984 |
81549 250 | n | − | 492 | n | = | - | 984 | + | 81549 250 |
| - | 41451 250 | n | = | - | 984 | + | 81549 250 |
| - | 41451 250 | n | = | - | 164451 250 |
164451 250 | = | 41451 250 | n |
41451 250 | n | = | 164451 250 |
| n | = | 164451 250 | ÷ | 41451 250 |
| = | 164451 250 | × | 250 41451 |
| = | 1337 | × | 1 337 |
| n | = | 1337 337 |
| n | = | 3.967359 |