42793467 100 | − | x | = | 1 10 | x | ÷ | 21 20 | × | 1 20 |
| 方程右边 = | 1 210 | x |
42793467 100 | − | x | = | 1 210 | x |
| - | x | − | 1 210 | x | = | - | 42793467 100 |
| - | 211 210 | x | = | - | 42793467 100 |
42793467 100 | = | 211 210 | x |
211 210 | x | = | 42793467 100 |
| x | = | 42793467 100 | ÷ | 211 210 |
| = | 42793467 100 | × | 210 211 |
| = | 42793467 10 | × | 21 211 |
| x | = | 898662807 2110 |
| x | = | 425906.543602 |