| ( | 128 | ( | 1 | + | 15 100 | ) | ) | + | ( | 3 100 | x | ) | = | x |
| 方程左边 = | 128 | ( | 1 | + | 15 100 | ) | + | ( | 3 100 | x | ) |
| = | 128 | × | 1 | + | 128 | × | 15 100 | + | ( | 3 100 | x | ) |
| = | 128 | + | 96 5 | + | ( | 3 100 | x | ) |
| = | 736 5 | + | ( | 3 100 | x | ) |
| = | 736 5 | + | 3 100 | x |
736 5 | + | 3 100 | x | = | x |
3 100 | x | − | x | = | - | 736 5 |
| - | 97 100 | x | = | - | 736 5 |
736 5 | = | 97 100 | x |
97 100 | x | = | 736 5 |
| x | = | 736 5 | ÷ | 97 100 |
| = | 736 5 | × | 100 97 |
| = | 736 | × | 20 97 |
| x | = | 14720 97 |
| x | = | 151.752577 |