| ( | 17 5 | + | c | ) | × | 198 25 | = | 603 50 | c |
| 方程左边 = | 17 5 | × | 198 25 | + | c | × | 198 25 |
| = | 3366 125 | + | c | × | 198 25 |
3366 125 | + | 198 25 | c | = | 603 50 | c |
198 25 | c | − | 603 50 | c | = | - | 3366 125 |
| - | 207 50 | c | = | - | 3366 125 |
3366 125 | = | 207 50 | c |
207 50 | c | = | 3366 125 |
| c | = | 3366 125 | ÷ | 207 50 |
| = | 3366 125 | × | 50 207 |
| = | 374 5 | × | 2 23 |
| c | = | 748 115 |
| c | = | 6.504348 |