| 1600 | ÷ | ( | 200 | ( | 1 | − | ( | m | ÷ | 100 | ) | ) | ) | = | 8 | + | 4 5 | m |
| 方程两边同时乘以: | ( | 200 | ( | 1 | − | ( | m | ÷ | 100 | ) | ) | ) |
| 1600 | = | 8 | ( | 200 | ( | 1 | − | ( | m | ÷ | 100 | ) | ) | ) | + | 4 5 | m | ( | 200 | ( | 1 | − | ( | m | ÷ | 100 | ) | ) | ) |
| 1600 | = | 8 | × | 200 | ( | 1 | − | ( | m | ÷ | 100 | ) | ) | + | 4 5 | m | ( | 200 | ( | 1 | − | ( | m | ÷ | 100 | ) | ) | ) |
| 1600 | = | 1600 | ( | 1 | − | ( | m | ÷ | 100 | ) | ) | + | 4 5 | m | ( | 200 | ( | 1 | − | ( | m | ÷ | 100 | ) | ) | ) |
| 1600 | = | 1600 | × | 1 | − | 1600 | ( | m | ÷ | 100 | ) | + | 4 5 | m | ( | 200 | ( | 1 | − | ( | m | ÷ | 100 | ) | ) | ) |
| 1600 | = | 1600 | − | 1600 | ( | m | ÷ | 100 | ) | + | 4 5 | m | ( | 200 | ( | 1 | − | ( | m | ÷ | 100 | ) | ) | ) |
| 1600 | = | 1600 | − | 1600 | m | ÷ | 100 | + | 4 5 | m | ( | 200 | ( | 1 | − | ( | m | ÷ | 100 | ) | ) | ) |
| 1600 | = | 1600 | − | 16 | m | + | 4 5 | m | ( | 200 | ( | 1 | − | ( | m | ÷ | 100 | ) | ) | ) |
| 1600 | = | 1600 | − | 16 | m | + | 4 5 | m | × | 200 | ( | 1 | − | ( | m | ÷ | 100 | ) | ) |
| 1600 | = | 1600 | − | 16 | m | + | 160 | m | ( | 1 | − | ( | m | ÷ | 100 | ) | ) |
| 1600 | = | 1600 | − | 16 | m | + | 160 | m | × | 1 | − | 160 | m | ( | m | ÷ | 100 | ) |
| 1600 | = | 1600 | − | 16 | m | + | 160 | m | − | 160 | m | ( | m | ÷ | 100 | ) |
| 1600 | = | 1600 | + | 144 | m | − | 160 | m | ( | m | ÷ | 100 | ) |
| 1600 | = | 1600 | + | 144 | m | − | 160 | m | m | ÷ | 100 |
| 1600 | = | 1600 | + | 144 | m | − | 8 5 | m | m |