103 100 | x | + | 659 20 | + | 1003 50 | + | 143 100 | + | ( | 103 100 | x | + | 659 20 | + | 1003 50 | + | 143 100 | ) | × | 3 20 | = | 143257142857143 1000000000000 |
| 方程左边 = | 103 100 | x | + | 1361 25 | + | ( | 103 100 | x | + | 659 20 | + | 1003 50 | + | 143 100 | ) | × | 3 20 |
103 100 | x | + | 1361 25 | + | ( | 103 100 | x | + | 659 20 | + | 1003 50 | + | 143 100 | ) | × | 3 20 | = | 143257142857143 1000000000000 |
| 方程左边 = | 103 100 | x | + | 1361 25 | + | 103 100 | x | × | 3 20 | + | 659 20 | × | 3 20 | + | 1003 50 | × | 3 20 | + | 143 100 | × | 3 20 |
| = | 103 100 | x | + | 1361 25 | + | 309 2000 | x | + | 1977 400 | + | 3009 1000 | + | 429 2000 |
| = | 2369 2000 | x | + | 31303 500 |
2369 2000 | x | + | 31303 500 | = | 143257142857143 1000000000000 |
2369 2000 | x | = | 143257142857143 1000000000000 | − | 31303 500 |