5 4 | = | 2013 100 | × | 3 1000 | × | 13 10 | ( | 48101 10000 | − | x | ) |
| 方程右边 = | 78507 1000000 | ( | 48101 10000 | − | x | ) |
5 4 | = | 78507 1000000 | ( | 48101 10000 | − | x | ) |
| 方程右边 = | 78507 1000000 | × | 48101 10000 | − | 78507 1000000 | x |
| = | 3776265207 10000000000 | − | 78507 1000000 | x |
5 4 | = | 3776265207 10000000000 | − | 78507 1000000 | x |
78507 1000000 | x | = | 3776265207 10000000000 | − | 5 4 |