| 1975844 | ( | x | + | 399 100 | ) | = | 30578384 |
| 方程左边 = | 1975844 | x | + | 1975844 | × | 399 100 |
| = | 1975844 | x | + | 197090439 25 |
| 1975844 | x | + | 197090439 25 | = | 30578384 |
| 1975844 | x | = | 30578384 | − | 197090439 25 |
| 1975844 | x | = | 567369161 25 |
| x | = | 567369161 25 | ÷ | 1975844 |
| = | 567369161 25 | × | 1 1975844 |
| x | = | 567369161 49396100 |
| x | = | 11.486112 |