| ( | 842439 | + | x | ) | × | 11 1250 | = | x |
| 方程左边 = | 842439 | × | 11 1250 | + | x | × | 11 1250 |
| = | 9266829 1250 | + | x | × | 11 1250 |
9266829 1250 | + | 11 1250 | x | = | x |
11 1250 | x | − | x | = | - | 9266829 1250 |
| - | 1239 1250 | x | = | - | 9266829 1250 |
9266829 1250 | = | 1239 1250 | x |
1239 1250 | x | = | 9266829 1250 |
| x | = | 9266829 1250 | ÷ | 1239 1250 |
| = | 9266829 1250 | × | 1250 1239 |
| = | 3088943 | × | 1 413 |
| x | = | 3088943 413 |
| x | = | 7479.280872 |