607 50 | c | = | 797 100 | ( | 17 5 | + | c | ) |
| 方程右边 = | 797 100 | × | 17 5 | + | 797 100 | c |
| = | 13549 500 | + | 797 100 | c |
607 50 | c | = | 13549 500 | + | 797 100 | c |
607 50 | c | − | 797 100 | c | = | 13549 500 |
417 100 | c | = | 13549 500 |
| c | = | 13549 500 | ÷ | 417 100 |
| = | 13549 500 | × | 100 417 |
| = | 13549 5 | × | 1 417 |
| c | = | 13549 2085 |
| c | = | 6.498321 |