| 22000 | + | x | ÷ | 21 20 | × | 3 200 | × | 207 200 | + | x | ÷ | 21 20 | × | 1 50 | + | x | ÷ | 21 20 | × | 1 200 | = | x |
| 方程左边 = | 22000 | + | x | × | 207 14000 | + | x | × | 2 105 | + | x | × | 1 210 |
| = | 22000 | + | 1621 42000 | x |
| 22000 | + | 1621 42000 | x | = | x |
1621 42000 | x | − | x | = | - | 22000 |
| - | 40379 42000 | x | = | - | 22000 |
| 22000 | = | 40379 42000 | x |
40379 42000 | x | = | 22000 |
| x | = | 22000 | ÷ | 40379 42000 |
| = | 22000 | × | 42000 40379 |
| x | = | 924000000 40379 |
| x | = | 22883.181852 |