| ( | 159 | ( | 1 | + | 15 100 | ) | ) | + | ( | 5 100 | x | ) | = | x |
| 方程左边 = | 159 | ( | 1 | + | 15 100 | ) | + | ( | 5 100 | x | ) |
| = | 159 | × | 1 | + | 159 | × | 15 100 | + | ( | 5 100 | x | ) |
| = | 159 | + | 477 20 | + | ( | 5 100 | x | ) |
| = | 3657 20 | + | ( | 5 100 | x | ) |
| = | 3657 20 | + | 5 100 | x |
3657 20 | + | 5 100 | x | = | x |
5 100 | x | − | x | = | - | 3657 20 |
| - | 19 20 | x | = | - | 3657 20 |
3657 20 | = | 19 20 | x |
19 20 | x | = | 3657 20 |
| x | = | 3657 20 | ÷ | 19 20 |
| = | 3657 20 | × | 20 19 |
| = | 3657 | × | 1 19 |
| x | = | 3657 19 |
| x | = | 192.473684 |