| 56 | Q | − | ( | 580 | + | 40 | Q | ) | − | ( | 56 | Q | × | 13 100 | − | 5 | Q | ) | × | 13 100 | = | 0 |
| Left side of the equation = | 56 | Q | − | 580 | − | 40 | Q | − | ( | 56 | Q | × | 13 100 | − | 5 | Q | ) | × | 13 100 |
| = | 16 | Q | − | 580 | − | ( | 56 | Q | × | 13 100 | − | 5 | Q | ) | × | 13 100 |
| = | 16 | Q | − | 580 | − | 56 | Q | × | 13 100 | × | 13 100 | + | 5 | Q | × | 13 100 |
| = | 16 | Q | − | 580 | − | 1183 1250 | Q | + | 13 20 | Q |
| = | 39259 2500 | Q | − | 580 |
39259 2500 | Q | − | 580 | = | 0 |
39259 2500 | Q | = | 0 | + | 580 |
39259 2500 | Q | = | 580 |
| Q | = | 580 | ÷ | 39259 2500 |
| = | 580 | × | 2500 39259 |
| Q | = | 1450000 39259 |
| Q | = | 36.934206 |