| 56 | Q | − | ( | 560 | + | 40 | Q | ) | − | ( | 56 | Q | × | 13 100 | − | 5 | Q | ) | × | 12 100 | = | 0 |
| Left side of the equation = | 56 | Q | − | 560 | − | 40 | Q | − | ( | 56 | Q | × | 13 100 | − | 5 | Q | ) | × | 12 100 |
| = | 16 | Q | − | 560 | − | ( | 56 | Q | × | 13 100 | − | 5 | Q | ) | × | 12 100 |
| = | 16 | Q | − | 560 | − | 56 | Q | × | 13 100 | × | 12 100 | + | 5 | Q | × | 12 100 |
| = | 16 | Q | − | 560 | − | 546 625 | Q | + | 3 5 | Q |
| = | 9829 625 | Q | − | 560 |
9829 625 | Q | − | 560 | = | 0 |
9829 625 | Q | = | 0 | + | 560 |
9829 625 | Q | = | 560 |
| Q | = | 560 | ÷ | 9829 625 |
| = | 560 | × | 625 9829 |
| Q | = | 350000 9829 |
| Q | = | 35.608912 |