| ( | 370 | ( | 1 | + | 15 100 | ) | ) | + | ( | 7 100 | x | ) | = | x |
| 方程左边 = | 370 | ( | 1 | + | 15 100 | ) | + | ( | 7 100 | x | ) |
| = | 370 | × | 1 | + | 370 | × | 15 100 | + | ( | 7 100 | x | ) |
| = | 370 | + | 111 2 | + | ( | 7 100 | x | ) |
| = | 851 2 | + | ( | 7 100 | x | ) |
| = | 851 2 | + | 7 100 | x |
851 2 | + | 7 100 | x | = | x |
7 100 | x | − | x | = | - | 851 2 |
| - | 93 100 | x | = | - | 851 2 |
851 2 | = | 93 100 | x |
93 100 | x | = | 851 2 |
| x | = | 851 2 | ÷ | 93 100 |
| = | 851 2 | × | 100 93 |
| = | 851 | × | 50 93 |
| x | = | 42550 93 |
| x | = | 457.526882 |