( | ( | 709639 50 | + | a | + | 843 | + | 8000 | ) | − | 15000 | − | 1686 | − | 843 | ) | × | 3 100 | = | 4639 50 | + | a |
方程左边 = | ( | 709639 50 | + | a | + | 843 | + | 8000 | ) | × | 3 100 | − | 15000 | × | 3 100 | − | 1686 | × | 3 100 | − | 843 | × | 3 100 |
= | ( | 709639 50 | + | a | + | 843 | + | 8000 | ) | × | 3 100 | − | 450 | − | 2529 50 | − | 2529 100 |
= | ( | 709639 50 | + | a | + | 843 | + | 8000 | ) | × | 3 100 | − | 52587 100 |
= | 709639 50 | × | 3 100 | + | a | × | 3 100 | + | 843 | × | 3 100 | + | 8000 | × | 3 100 | − | 52587 100 |
= | 2128917 5000 | + | a | × | 3 100 | + | 2529 100 | + | 240 | − | 52587 100 |
= | 826017 5000 | + | 3 100 | a |
826017 5000 | + | 3 100 | a | = | 4639 50 | + | a |
3 100 | a | − | a | = | 4639 50 | − | 826017 5000 |
- | 97 100 | a | = | 4639 50 | − | 826017 5000 |
- | 97 100 | a | = | - | 362117 5000 |
362117 5000 | = | 97 100 | a |
97 100 | a | = | 362117 5000 |
a | = | 362117 5000 | ÷ | 97 100 |
= | 362117 5000 | × | 100 97 |
= | 362117 50 | × | 1 97 |
a | = | 362117 4850 |
a | = | 74.663299 |