( | ( | a | + | 843 | + | 8000 | ) | − | 5000 | − | 843 | ) | × | 3 100 | − | 2520 | = | a |
方程左边 = | ( | a | + | 843 | + | 8000 | ) | × | 3 100 | − | 5000 | × | 3 100 | − | 843 | × | 3 100 | − | 2520 |
= | ( | a | + | 843 | + | 8000 | ) | × | 3 100 | − | 150 | − | 2529 100 | − | 2520 |
= | ( | a | + | 843 | + | 8000 | ) | × | 3 100 | − | 269529 100 |
= | a | × | 3 100 | + | 843 | × | 3 100 | + | 8000 | × | 3 100 | − | 269529 100 |
= | a | × | 3 100 | + | 2529 100 | + | 240 | − | 269529 100 |
= | 3 100 | a | − | 2430 |
3 100 | a | − | 2430 | = | a |
3 100 | a | − | a | = | 2430 |
- | 97 100 | a | = | 2430 |
- | 2430 | = | 97 100 | a |
97 100 | a | = | - | 2430 |
a | = | - | 2430 | ÷ | 97 100 |
= | - | 2430 | × | 100 97 |
a | = | - | 243000 97 |
a | = | - 2505.154639 |