883 25 | ( | x | + | 21 5 | ) | = | 4811 100 | x | + | 68181 500 |
| 方程左边 = | 883 25 | x | + | 883 25 | × | 21 5 |
| = | 883 25 | x | + | 18543 125 |
883 25 | x | + | 18543 125 | = | 4811 100 | x | + | 68181 500 |
883 25 | x | − | 4811 100 | x | = | 68181 500 | − | 18543 125 |
| - | 1279 100 | x | = | 68181 500 | − | 18543 125 |
| - | 1279 100 | x | = | - | 5991 500 |
5991 500 | = | 1279 100 | x |
1279 100 | x | = | 5991 500 |
| x | = | 5991 500 | ÷ | 1279 100 |
| = | 5991 500 | × | 100 1279 |
| = | 5991 5 | × | 1 1279 |
| x | = | 5991 6395 |
| x | = | 0.936826 |