| ( | 1676 | + | 9200 | − | ( | 5000 | + | 1000 | + | 1000 | + | 2000 | ) | × | 1 | − | 172857 100 | × | 1 | − | x | × | 1 | ) | × | 3 100 | − | 0 | = | 221 50 |
| 方程左边 = | 1676 | × | 3 100 | + | 9200 | × | 3 100 | − | ( | 5000 | + | 1000 | + | 1000 | + | 2000 | ) | × | 1 | × | 3 100 | − | 172857 100 | × | 1 | × | 3 100 | − | x | × | 1 |
| = | 1257 25 | + | 276 | − | ( | 5000 | + | 1000 | + | 1000 | + | 2000 | ) | × | 3 100 | − | 518571 10000 | − | x | × | 3 100 | − | 0 |
| = | 2744229 10000 | − | ( | 5000 | + | 1000 | + | 1000 | + | 2000 | ) | × | 3 100 | − | 3 100 | x |
| = | 2744229 10000 | − | 5000 | × | 3 100 | − | 1000 | × | 3 100 | − | 1000 | × | 3 100 | − | 2000 | × | 3 100 | − | 3 100 | x |
| = | 2744229 10000 | − | 150 | − | 30 | − | 30 | − | 60 | − | 3 100 | x |
| = | 44229 10000 | − | 3 100 | x |
44229 10000 | − | 3 100 | x | = | 221 50 |
| - | 3 100 | x | = | 221 50 | − | 44229 10000 |
| - | 3 100 | x | = | - | 29 10000 |
29 10000 | = | 3 100 | x |
3 100 | x | = | 29 10000 |
| x | = | 29 10000 | ÷ | 3 100 |
| = | 29 10000 | × | 100 3 |
| = | 29 100 | × | 1 3 |
| x | = | 29 300 |
| x | = | 0.096667 |