| ( | 4823 125 | + | x | ) | × | 47 20 | = | 4823 125 | − | x | + | 17117 250 |
| 方程左边 = | 4823 125 | × | 47 20 | + | x | × | 47 20 |
| = | 226681 2500 | + | x | × | 47 20 |
226681 2500 | + | 47 20 | x | = | 4823 125 | − | x | + | 17117 250 |
| 方程右边 = | 26763 250 | − | x |
226681 2500 | + | 47 20 | x | = | 26763 250 | − | x |
47 20 | x | + | x | = | 26763 250 | − | 226681 2500 |
67 20 | x | = | 26763 250 | − | 226681 2500 |
67 20 | x | = | 40949 2500 |
| x | = | 40949 2500 | ÷ | 67 20 |
| = | 40949 2500 | × | 20 67 |
| = | 40949 125 | × | 1 67 |
| x | = | 40949 8375 |
| x | = | 4.889433 |