| ( | ( | 90 | Q | − | ( | 580 | + | 20 | Q | ) | − | ( | 90 | Q | × | 13 100 | − | 5 | Q | ) | × | 10 100 | ) | ( | 1 | − | 25 100 | ) | + | 35729 100 | ) | = | 10609 25 |
| 方程左边 = | ( | 90 | Q | − | ( | 580 | + | 20 | Q | ) | − | ( | 90 | Q | × | 13 100 | − | 5 | Q | ) | × | 10 100 | ) | ( | 1 | − | 25 100 | ) | + | 35729 100 |
| = | 90 | Q | ( | 1 | − | 25 100 | ) | − | ( | 580 | + | 20 | Q | ) | ( | 1 | − | 25 100 | ) | − | ( | 90 | Q | × | 13 100 | − | 5 | Q | ) | × | 10 100 | ( | 1 | − | 25 100 | ) | + | 35729 100 |
| = | 90 | Q | × | 1 | − | 90 | Q | × | 25 100 | − | ( | 580 | + | 20 | Q | ) | ( | 1 | − | 25 100 | ) | − | ( | 90 | Q | × | 13 100 | − | 5 | Q | ) | × | 10 100 | ( | 1 | − | 25 100 | ) | + | 35729 100 |
| = | 90 | Q | − | 45 2 | Q | − | ( | 580 | + | 20 | Q | ) | ( | 1 | − | 25 100 | ) | − | ( | 90 | Q | × | 13 100 | − | 5 | Q | ) | × | 10 100 | ( | 1 | − | 25 100 | ) | + | 35729 100 |
| = | 135 2 | Q | − | ( | 580 | + | 20 | Q | ) | ( | 1 | − | 25 100 | ) | − | ( | 90 | Q | × | 13 100 | − | 5 | Q | ) | × | 10 100 | ( | 1 | − | 25 100 | ) | + | 35729 100 |
| = | 135 2 | Q | − | 580 | ( | 1 | − | 25 100 | ) | − | 20 | Q | ( | 1 | − | 25 100 | ) | − | ( | 90 | Q | × | 13 100 | − | 5 | Q | ) | × | 10 100 | ( | 1 | − | 25 100 | ) | + | 35729 100 |
| = | 135 2 | Q | − | 580 | × | 1 | + | 580 | × | 25 100 | − | 20 | Q | ( | 1 | − | 25 100 | ) | − | ( | 90 | Q | × | 13 100 | − | 5 | Q | ) | × | 10 100 | ( | 1 | − | 25 100 | ) |
| = | 135 2 | Q | − | 580 | + | 145 | − | 20 | Q | ( | 1 | − | 25 100 | ) | − | ( | 90 | Q | × | 13 100 | − | 5 | Q | ) | × | 10 100 | ( | 1 | − | 25 100 | ) | + | 35729 100 |
| = | 135 2 | Q | − | 7771 100 | − | 20 | Q | ( | 1 | − | 25 100 | ) | − | ( | 90 | Q | × | 13 100 | − | 5 | Q | ) | × | 10 100 | ( | 1 | − | 25 100 | ) |
| = | 135 2 | Q | − | 7771 100 | − | 20 | Q | × | 1 | + | 20 | Q | × | 25 100 | − | ( | 90 | Q | × | 13 100 | − | 5 | Q | ) | × | 10 100 | ( | 1 | − | 25 100 | ) |
| = | 135 2 | Q | − | 7771 100 | − | 20 | Q | + | 5 | Q | − | ( | 90 | Q | × | 13 100 | − | 5 | Q | ) | × | 10 100 | ( | 1 | − | 25 100 | ) |
| = | 105 2 | Q | − | 7771 100 | − | ( | 90 | Q | × | 13 100 | − | 5 | Q | ) | × | 10 100 | ( | 1 | − | 25 100 | ) |
| = | 105 2 | Q | − | 7771 100 | − | 90 | Q | × | 13 100 | × | 10 100 | ( | 1 | − | 25 100 | ) | + | 5 | Q | × | 10 100 | ( | 1 | − | 25 100 | ) |
| = | 105 2 | Q | − | 7771 100 | − | 117 100 | Q | ( | 1 | − | 25 100 | ) | + | 1 2 | Q | ( | 1 | − | 25 100 | ) |
| = | 105 2 | Q | − | 7771 100 | − | 117 100 | Q | × | 1 | + | 117 100 | Q | × | 25 100 | + | 1 2 | Q | ( | 1 | − | 25 100 | ) |
| = | 105 2 | Q | − | 7771 100 | − | 117 100 | Q | + | 117 400 | Q | + | 1 2 | Q | ( | 1 | − | 25 100 | ) |
| = | 20649 400 | Q | − | 7771 100 | + | 1 2 | Q | ( | 1 | − | 25 100 | ) |
| = | 20649 400 | Q | − | 7771 100 | + | 1 2 | Q | × | 1 | − | 1 2 | Q | × | 25 100 |
| = | 20649 400 | Q | − | 7771 100 | + | 1 2 | Q | − | 1 8 | Q |
| = | 20799 400 | Q | − | 7771 100 |
20799 400 | Q | − | 7771 100 | = | 10609 25 |
20799 400 | Q | = | 10609 25 | + | 7771 100 |
20799 400 | Q | = | 50207 100 |
| Q | = | 50207 100 | ÷ | 20799 400 |
| = | 50207 100 | × | 400 20799 |
| = | 50207 | × | 4 20799 |
| Q | = | 200828 20799 |
| Q | = | 9.655657 |