0 | = | 1400 | Q | − | ( | ( | 400 | + | 500 | Q | ) | ) | − | 1400 | Q | × | 3 50 |
方程右边 = | 1400 | Q | − | ( | ( | 400 | + | 500 | Q | ) | ) | − | 84 | Q |
= | 1316 | Q | − | ( | ( | 400 | + | 500 | Q | ) | ) |
0 | = | 1316 | Q | − | ( | ( | 400 | + | 500 | Q | ) | ) |
方程右边 = | 1316 | Q | − | ( | 400 | + | 500 | Q | ) |
= | 1316 | Q | − | 400 | − | 500 | Q |
= | 816 | Q | − | 400 |
0 | = | 816 | Q | − | 400 |
- | 816 | Q | = | - | 400 | − | 0 |
- | 816 | Q | = | - | 400 |
400 | = | 816 | Q |
816 | Q | = | 400 |
Q | = | 400 | ÷ | 816 |
= | 400 | × | 1 816 |
= | 25 | × | 1 51 |
Q | = | 25 51 |
Q | = | 0.490196 |