| x | = | 37749 100 | + | x | ( | 1 | + | 10 100 | ) | × | 1 100 | + | 20 100 | x | + | ( | 300 | + | x | × | 1000 | × | 13 10000 | ) | ÷ | 1000 | + | 11 | + | ( | 60 | × | 13 | + | 810 | + | x | × | 1000 | × | 5 100 | ) | ÷ | 1000 | − | x |
| 方程右边 = | 38849 100 | + | x | ( | 1 | + | 10 100 | ) | × | 1 100 | + | 1 20 | x | + | ( | 300 | + | x | × | 1000 | × | 13 10000 | ) | × | 1 1000 | + | ( | 60 | × | 13 | + | 810 | + | x | × | 1000 | × | 5 100 | ) | × | 1 1000 |
| x | = | 38849 100 | + | x | ( | 1 | + | 10 100 | ) | × | 1 100 | + | 1 20 | x | + | ( | 300 | + | x | × | 1000 | × | 13 10000 | ) | × | 1 1000 | + | ( | 60 | × | 13 | + | 810 | + | x | × | 1000 | × | 5 100 | ) | × | 1 1000 |
| 方程右边 = | 38849 100 | + | x | × | 1 | × | 1 100 | + | x | × | 10 100 | × | 1 100 | + | 1 20 | x | + | ( | 300 | + | x | × | 1000 | × | 13 10000 | ) | × | 1 1000 | + | ( | 60 | × | 13 | + | 810 | + | x | × | 1000 | × | 5 100 | ) |
| = | 38849 100 | + | x | × | 1 100 | + | x | × | 1 1000 | + | 1 20 | x | + | ( | 300 | + | x | × | 1000 | × | 13 10000 | ) | × | 1 1000 | + | ( | 60 | × | 13 | + | 810 | + | x | × | 1000 | × | 5 100 | ) | × | 1 1000 |
| = | 38849 100 | + | 61 1000 | x | + | ( | 300 | + | x | × | 1000 | × | 13 10000 | ) | × | 1 1000 | + | ( | 60 | × | 13 | + | 810 | + | x | × | 1000 | × | 5 100 | ) | × | 1 1000 |
| = | 38849 100 | + | 61 1000 | x | + | 300 | × | 1 1000 | + | x | × | 1000 | × | 13 10000 | × | 1 1000 | + | ( | 60 | × | 13 | + | 810 | + | x | × | 1000 | × | 5 100 | ) | × | 1 1000 |
| = | 38849 100 | + | 61 1000 | x | + | 3 10 | + | x | × | 13 10000 | + | ( | 60 | × | 13 | + | 810 | + | x | × | 1000 | × | 5 100 | ) | × | 1 1000 |
| = | 38879 100 | + | 623 10000 | x | + | ( | 60 | × | 13 | + | 810 | + | x | × | 1000 | × | 5 100 | ) | × | 1 1000 |
| = | 38879 100 | + | 623 10000 | x | + | 60 | × | 13 | × | 1 1000 | + | 810 | × | 1 1000 | + | x | × | 1000 | × | 5 100 | × | 1 1000 |
| = | 38879 100 | + | 623 10000 | x | + | 39 50 | + | 81 100 | + | x | × | 1 20 |
| = | 19519 50 | + | 1123 10000 | x |
| x | = | 19519 50 | + | 1123 10000 | x |
| x | − | 1123 10000 | x | = | 19519 50 |
8877 10000 | x | = | 19519 50 |
| x | = | 19519 50 | ÷ | 8877 10000 |
| = | 19519 50 | × | 10000 8877 |
| = | 19519 | × | 200 8877 |
| x | = | 3903800 8877 |
| x | = | 439.765687 |