103 100 | x | + | 397 25 | + | 1651 100 | + | 30 | + | ( | 103 100 | x | + | 397 25 | + | 1651 100 | + | 30 | ) | × | 3 20 | = | 89789225477419 1000000000000 |
| 方程左边 = | 103 100 | x | + | 6239 100 | + | ( | 103 100 | x | + | 397 25 | + | 1651 100 | + | 30 | ) | × | 3 20 |
103 100 | x | + | 6239 100 | + | ( | 103 100 | x | + | 397 25 | + | 1651 100 | + | 30 | ) | × | 3 20 | = | 89789225477419 1000000000000 |
| 方程左边 = | 103 100 | x | + | 6239 100 | + | 103 100 | x | × | 3 20 | + | 397 25 | × | 3 20 | + | 1651 100 | × | 3 20 | + | 30 | × | 3 20 |
| = | 103 100 | x | + | 6239 100 | + | 309 2000 | x | + | 1191 500 | + | 4953 2000 | + | 9 2 |
| = | 2369 2000 | x | + | 143497 2000 |
2369 2000 | x | + | 143497 2000 | = | 89789225477419 1000000000000 |
2369 2000 | x | = | 89789225477419 1000000000000 | − | 143497 2000 |