| ( | 3000 | − | x | ) | × | 97 100 | + | 5000 | = | 785599 100 |
| 方程左边 = | 3000 | × | 97 100 | − | x | × | 97 100 | + | 5000 |
| = | 2910 | − | x | × | 97 100 | + | 5000 |
| = | 7910 | − | 97 100 | x |
| 7910 | − | 97 100 | x | = | 785599 100 |
| - | 97 100 | x | = | 785599 100 | − | 7910 |
| - | 97 100 | x | = | - | 5401 100 |
5401 100 | = | 97 100 | x |
97 100 | x | = | 5401 100 |
| x | = | 5401 100 | ÷ | 97 100 |
| = | 5401 100 | × | 100 97 |
| = | 5401 | × | 1 97 |
| x | = | 5401 97 |
| x | = | 55.680412 |