70 | Q | − | ( | 20 | Q | + | 300 | + | 12912 25 | ) | − | ( | 70 | × | 13 100 | Q | − | 2 | Q | ) | × | 10 100 | = | 464 |
方程左边 = | 70 | Q | − | 20 | Q | − | 300 | − | 12912 25 | − | ( | 70 | × | 13 100 | Q | − | 2 | Q | ) | × | 10 100 |
= | 50 | Q | − | 20412 25 | − | ( | 70 | × | 13 100 | Q | − | 2 | Q | ) | × | 10 100 |
= | 50 | Q | − | 20412 25 | − | 70 | × | 13 100 | Q | × | 10 100 | + | 2 | Q | × | 10 100 |
= | 50 | Q | − | 20412 25 | − | 91 100 | Q | + | 1 5 | Q |
= | 4929 100 | Q | − | 20412 25 |
4929 100 | Q | − | 20412 25 | = | 464 |
4929 100 | Q | = | 464 | + | 20412 25 |
4929 100 | Q | = | 32012 25 |
Q | = | 32012 25 | ÷ | 4929 100 |
= | 32012 25 | × | 100 4929 |
= | 604 | × | 4 93 |
Q | = | 2416 93 |
Q | = | 25.978495 |