1309 100 | c | = | ( | 33 10 | + | c | ) | × | 199 25 |
| Right side of the equation = | 33 10 | × | 199 25 | + | c | × | 199 25 |
| = | 6567 250 | + | c | × | 199 25 |
1309 100 | c | = | 6567 250 | + | 199 25 | c |
1309 100 | c | − | 199 25 | c | = | 6567 250 |
513 100 | c | = | 6567 250 |
| c | = | 6567 250 | ÷ | 513 100 |
| = | 6567 250 | × | 100 513 |
| = | 2189 5 | × | 2 171 |
| c | = | 4378 855 |
| c | = | 5.120468 |