1199 100 | c | = | ( | 7 2 | + | c | ) | × | 198 25 |
| Right side of the equation = | 7 2 | × | 198 25 | + | c | × | 198 25 |
| = | 693 25 | + | c | × | 198 25 |
1199 100 | c | = | 693 25 | + | 198 25 | c |
1199 100 | c | − | 198 25 | c | = | 693 25 |
407 100 | c | = | 693 25 |
| c | = | 693 25 | ÷ | 407 100 |
| = | 693 25 | × | 100 407 |
| = | 63 | × | 4 37 |
| c | = | 252 37 |
| c | = | 6.810811 |