1 10 | x | + | ( | x | × | 21 20 | + | 200 | ) | + | 1 10 | x | + | ( | 1 10 | x | × | 829 5000 | ) | = | 27128 5 |
| 方程左边 = | 1 5 | x | + | ( | x | × | 21 20 | + | 200 | ) | + | ( | 1 10 | x | × | 829 5000 | ) |
1 5 | x | + | ( | x | × | 21 20 | + | 200 | ) | + | ( | 1 10 | x | × | 829 5000 | ) | = | 27128 5 |
| 方程左边 = | 1 5 | x | + | x | × | 21 20 | + | 200 | + | ( | 1 10 | x | × | 829 5000 | ) |
| = | 5 4 | x | + | 200 | + | ( | 1 10 | x | × | 829 5000 | ) |
| = | 5 4 | x | + | 200 | + | 1 10 | x | × | 829 5000 |
| = | 5 4 | x | + | 200 | + | 829 50000 | x |
| = | 63329 50000 | x | + | 200 |
63329 50000 | x | + | 200 | = | 27128 5 |
63329 50000 | x | = | 27128 5 | − | 200 |
63329 50000 | x | = | 26128 5 |
| x | = | 26128 5 | ÷ | 63329 50000 |
| = | 26128 5 | × | 50000 63329 |
| = | 26128 | × | 10000 63329 |
| x | = | 261280000 63329 |
| x | = | 4125.755973 |