| ( | x | − | 160573 2500 | ) | ÷ | 20039 10000 | = | 17 5 |
| 方程左边 = | x | × | 10000 20039 | − | 160573 2500 | × | 10000 20039 |
| = | x | × | 10000 20039 | − | 22148 691 |
10000 20039 | x | − | 22148 691 | = | 17 5 |
10000 20039 | x | = | 17 5 | + | 22148 691 |
10000 20039 | x | = | 122487 3455 |
| x | = | 122487 3455 | ÷ | 10000 20039 |
| = | 122487 3455 | × | 20039 10000 |
| x | = | 2454516993 34550000 |
| x | = | 3552123 50000 |
| x | = | 71.04246 |