| ( | ( | 1844356 25 | + | A | + | 843 | + | 8000 | ) | − | 40000 | − | 21189 5 | − | 843 | ) | × | 3 100 | = | 1 | − | 3609 100 | + | A |
| 方程左边 = | ( | 1844356 25 | + | A | + | 843 | + | 8000 | ) | × | 3 100 | − | 40000 | × | 3 100 | − | 21189 5 | × | 3 100 | − | 843 | × | 3 100 |
| = | ( | 1844356 25 | + | A | + | 843 | + | 8000 | ) | × | 3 100 | − | 1200 | − | 63567 500 | − | 2529 100 |
| = | ( | 1844356 25 | + | A | + | 843 | + | 8000 | ) | × | 3 100 | − | 169053 125 |
| = | 1844356 25 | × | 3 100 | + | A | × | 3 100 | + | 843 | × | 3 100 | + | 8000 | × | 3 100 | − | 169053 125 |
| = | 1383267 625 | + | A | × | 3 100 | + | 2529 100 | + | 240 | − | 169053 125 |
| = | 2815233 2500 | + | 3 100 | A |
2815233 2500 | + | 3 100 | A | = | 1 | − | 3609 100 | + | A |
| 方程右边 = | - | 3509 100 | + | A |
2815233 2500 | + | 3 100 | A | = | - | 3509 100 | + | A |
3 100 | A | − | A | = | - | 3509 100 | − | 2815233 2500 |
| - | 97 100 | A | = | - | 3509 100 | − | 2815233 2500 |
| - | 97 100 | A | = | - | 1451479 1250 |
1451479 1250 | = | 97 100 | A |
97 100 | A | = | 1451479 1250 |
| A | = | 1451479 1250 | ÷ | 97 100 |
| = | 1451479 1250 | × | 100 97 |
| = | 1451479 25 | × | 2 97 |
| A | = | 2902958 2425 |
| A | = | 1197.096082 |