| ( | 12321 100 | x | + | 29959 10 | ) | ÷ | 23 | + | x | = | 12321 100 |
| 方程左边 = | 12321 100 | x | × | 1 23 | + | 29959 10 | × | 1 23 | + | x |
| = | 12321 2300 | x | + | 29959 230 | + | x |
| = | 14621 2300 | x | + | 29959 230 |
14621 2300 | x | + | 29959 230 | = | 12321 100 |
14621 2300 | x | = | 12321 100 | − | 29959 230 |
14621 2300 | x | = | - | 16207 2300 |
| x | = | - | 16207 2300 | ÷ | 14621 2300 |
| = | - | 16207 2300 | × | 2300 14621 |
| = | - | 16207 | × | 1 14621 |
| x | = | - | 16207 14621 |
| x | = | - 1.108474 |