49 4 | c | = | ( | 33 10 | + | c | ) | × | 793 100 |
| 方程右边 = | 33 10 | × | 793 100 | + | c | × | 793 100 |
| = | 26169 1000 | + | c | × | 793 100 |
49 4 | c | = | 26169 1000 | + | 793 100 | c |
49 4 | c | − | 793 100 | c | = | 26169 1000 |
108 25 | c | = | 26169 1000 |
| c | = | 26169 1000 | ÷ | 108 25 |
| = | 26169 1000 | × | 25 108 |
| = | 8723 40 | × | 1 36 |
| c | = | 8723 1440 |
| c | = | 6.057639 |