49 4 | c | = | ( | 17 5 | + | c | ) | × | 797 100 |
| 方程右边 = | 17 5 | × | 797 100 | + | c | × | 797 100 |
| = | 13549 500 | + | c | × | 797 100 |
49 4 | c | = | 13549 500 | + | 797 100 | c |
49 4 | c | − | 797 100 | c | = | 13549 500 |
107 25 | c | = | 13549 500 |
| c | = | 13549 500 | ÷ | 107 25 |
| = | 13549 500 | × | 25 107 |
| = | 13549 20 | × | 1 107 |
| c | = | 13549 2140 |
| c | = | 6.331308 |