| ( | 41789 1000 | + | x | ) | × | 29 20 | = | 9156 125 | + | 41789 1000 | − | x |
| 方程左边 = | 41789 1000 | × | 29 20 | + | x | × | 29 20 |
| = | 1211881 20000 | + | x | × | 29 20 |
1211881 20000 | + | 29 20 | x | = | 9156 125 | + | 41789 1000 | − | x |
| 方程右边 = | 115037 1000 | − | x |
1211881 20000 | + | 29 20 | x | = | 115037 1000 | − | x |
29 20 | x | + | x | = | 115037 1000 | − | 1211881 20000 |
49 20 | x | = | 115037 1000 | − | 1211881 20000 |
49 20 | x | = | 1088859 20000 |
| x | = | 1088859 20000 | ÷ | 49 20 |
| = | 1088859 20000 | × | 20 49 |
| = | 1088859 1000 | × | 1 49 |
| x | = | 1088859 49000 |
| x | = | 22.221612 |