329 25 | c | = | ( | 33 10 | + | c | ) | × | 198 25 |
| 方程右边 = | 33 10 | × | 198 25 | + | c | × | 198 25 |
| = | 3267 125 | + | c | × | 198 25 |
329 25 | c | = | 3267 125 | + | 198 25 | c |
329 25 | c | − | 198 25 | c | = | 3267 125 |
131 25 | c | = | 3267 125 |
| c | = | 3267 125 | ÷ | 131 25 |
| = | 3267 125 | × | 25 131 |
| = | 3267 5 | × | 1 131 |
| c | = | 3267 655 |
| c | = | 4.987786 |