259 10 | × | 31 100 | × | 21 25 | × | 67 10 | − | 19 | − | 259 10 | = | x | × | 31 100 | × | 21 25 | × | 67 10 | − | 16 | − | 259 10 | − | 1 5 |
| 方程左边 = | 11296803 250000 | − | 19 | − | 259 10 |
| = | 71803 250000 |
71803 250000 | = | x | × | 31 100 | × | 21 25 | × | 67 10 | − | 16 | − | 259 10 | − | 1 5 |
| 方程右边 = | x | × | 43617 25000 | − | 16 | − | 259 10 | − | 1 5 |
| = | 43617 25000 | x | − | 421 10 |
71803 250000 | = | 43617 25000 | x | − | 421 10 |
| - | 43617 25000 | x | = | - | 421 10 | − | 71803 250000 |
| - | 43617 25000 | x | = | - | 10596803 250000 |
10596803 250000 | = | 43617 25000 | x |
43617 25000 | x | = | 10596803 250000 |
| x | = | 10596803 250000 | ÷ | 43617 25000 |
| = | 10596803 250000 | × | 25000 43617 |
| = | 1513829 10 | × | 1 6231 |
| x | = | 1513829 62310 |
| x | = | 24.295121 |