7939 40 | ÷ | ( | n | − | 3 | ) | = | 2462469 5000 | ÷ | ( | n | − | 1 | ) |
| 方程两边同时乘以: | ( | n | − | 3 | ) | , | ( | n | − | 1 | ) |
7939 40 | ( | n | − | 1 | ) | = | 2462469 5000 | ( | n | − | 3 | ) |
7939 40 | n | − | 7939 40 | × | 1 | = | 2462469 5000 | ( | n | − | 3 | ) |
7939 40 | n | − | 7939 40 | × | 1 | = | 2462469 5000 | n | − | 2462469 5000 | × | 3 |
7939 40 | n | − | 7939 40 | = | 2462469 5000 | n | − | 7387407 5000 |
7939 40 | n | − | 2462469 5000 | n | = | - | 7387407 5000 | + | 7939 40 |
| - | 735047 2500 | n | = | - | 7387407 5000 | + | 7939 40 |
| - | 735047 2500 | n | = | - | 799379 625 |
799379 625 | = | 735047 2500 | n |
735047 2500 | n | = | 799379 625 |
| n | = | 799379 625 | ÷ | 735047 2500 |
| = | 799379 625 | × | 2500 735047 |
| = | 799379 | × | 4 735047 |
| n | = | 3197516 735047 |
| n | = | 4.350084 |