| ( | 241 200 | − | x | ) | ( | 30 | − | 293 10 | ) | = | ( | x | − | 233 200 | ) | × | 93 10 |
| 方程左边 = | 241 200 | ( | 30 | − | 293 10 | ) | − | x | ( | 30 | − | 293 10 | ) |
| = | 241 200 | × | 30 | − | 241 200 | × | 293 10 | − | x | ( | 30 | − | 293 10 | ) |
| = | 723 20 | − | 70613 2000 | − | x | ( | 30 | − | 293 10 | ) |
| = | 1687 2000 | − | x | ( | 30 | − | 293 10 | ) |
| = | 1687 2000 | − | x | × | 30 | + | x | × | 293 10 |
| = | 1687 2000 | − | 7 10 | x |
1687 2000 | − | 7 10 | x | = | ( | x | − | 233 200 | ) | × | 93 10 |
| 方程右边 = | x | × | 93 10 | − | 233 200 | × | 93 10 |
| = | x | × | 93 10 | − | 21669 2000 |
1687 2000 | − | 7 10 | x | = | 93 10 | x | − | 21669 2000 |
| - | 7 10 | x | − | 93 10 | x | = | - | 21669 2000 | − | 1687 2000 |
| - | 10 | x | = | - | 21669 2000 | − | 1687 2000 |
| - | 10 | x | = | - | 5839 500 |
5839 500 | = | 10 | x |
| 10 | x | = | 5839 500 |
| x | = | 5839 500 | ÷ | 10 |
| = | 5839 500 | × | 1 10 |
| x | = | 5839 5000 |
| x | = | 1.1678 |