| ( | x | + | 2000 | ) | × | 9 5 | = | ( | x | + | 1307 | ) | × | 19 10 |
| 方程左边 = | x | × | 9 5 | + | 2000 | × | 9 5 |
| = | x | × | 9 5 | + | 3600 |
9 5 | x | + | 3600 | = | ( | x | + | 1307 | ) | × | 19 10 |
| 方程右边 = | x | × | 19 10 | + | 1307 | × | 19 10 |
| = | x | × | 19 10 | + | 24833 10 |
9 5 | x | + | 3600 | = | 19 10 | x | + | 24833 10 |
9 5 | x | − | 19 10 | x | = | 24833 10 | − | 3600 |
| - | 1 10 | x | = | 24833 10 | − | 3600 |
| - | 1 10 | x | = | - | 11167 10 |
11167 10 | = | 1 10 | x |
1 10 | x | = | 11167 10 |
| x | = | 11167 10 | ÷ | 1 10 |
| = | 11167 10 | × | 10 |
| = | 11167 | × | 1 |
| x | = | 11167 |