103 100 | x | + | 15 | + | 20 | + | ( | 103 100 | x | + | 15 | + | 20 | ) | × | 3 20 | = | 832793839464363 10000000000000 |
| 方程左边 = | 103 100 | x | + | 35 | + | ( | 103 100 | x | + | 15 | + | 20 | ) | × | 3 20 |
103 100 | x | + | 35 | + | ( | 103 100 | x | + | 15 | + | 20 | ) | × | 3 20 | = | 832793839464363 10000000000000 |
| 方程左边 = | 103 100 | x | + | 35 | + | 103 100 | x | × | 3 20 | + | 15 | × | 3 20 | + | 20 | × | 3 20 |
| = | 103 100 | x | + | 35 | + | 309 2000 | x | + | 9 4 | + | 3 |
| = | 2369 2000 | x | + | 161 4 |
2369 2000 | x | + | 161 4 | = | 832793839464363 10000000000000 |
2369 2000 | x | = | 832793839464363 10000000000000 | − | 161 4 |