49 4 | c | = | ( | 33 10 | + | c | ) | × | 198 25 |
| 方程右边 = | 33 10 | × | 198 25 | + | c | × | 198 25 |
| = | 3267 125 | + | c | × | 198 25 |
49 4 | c | = | 3267 125 | + | 198 25 | c |
49 4 | c | − | 198 25 | c | = | 3267 125 |
433 100 | c | = | 3267 125 |
| c | = | 3267 125 | ÷ | 433 100 |
| = | 3267 125 | × | 100 433 |
| = | 3267 5 | × | 4 433 |
| c | = | 13068 2165 |
| c | = | 6.036028 |