6637 50 | ( | 1 | + | r | − | 2 | × | 199 200 | r | ) | = | 1 | + | r |
方程左边 = | 6637 50 | × | 1 | + | 6637 50 | r | − | 6637 50 | × | 2 | × | 199 200 | r |
= | 6637 50 | + | 6637 50 | r | − | 1320763 5000 | r |
= | 6637 50 | − | 657063 5000 | r |
6637 50 | − | 657063 5000 | r | = | 1 | + | r |
- | 657063 5000 | r | − | r | = | 1 | − | 6637 50 |
- | 662063 5000 | r | = | 1 | − | 6637 50 |
- | 662063 5000 | r | = | - | 6587 50 |
6587 50 | = | 662063 5000 | r |
662063 5000 | r | = | 6587 50 |
r | = | 6587 50 | ÷ | 662063 5000 |
= | 6587 50 | × | 5000 662063 |
= | 6587 | × | 100 662063 |
r | = | 658700 662063 |
r | = | 0.99492 |