| 1600 | ÷ | ( | 200 | − | ( | 1 | − | 1 100 | x | ) | ) | = | 8 | ( | 1 | + | 1 10 | x | ) |
| 方程两边同时乘以: | ( | 200 | − | ( | 1 | − | 1 100 | x | ) | ) |
| 1600 | = | 8 | ( | 1 | + | 1 10 | x | ) | ( | 200 | − | ( | 1 | − | 1 100 | x | ) | ) |
| 1600 | = | 8 | × | 1 | ( | 200 | − | ( | 1 | − | 1 100 | x | ) | ) | + | 8 | × | 1 10 | x | ( | 200 | − | ( | 1 | − | 1 100 | x | ) | ) |
| 1600 | = | 8 | ( | 200 | − | ( | 1 | − | 1 100 | x | ) | ) | + | 4 5 | x | ( | 200 | − | ( | 1 | − | 1 100 | x | ) | ) |
| 1600 | = | 8 | × | 200 | − | 8 | ( | 1 | − | 1 100 | x | ) | + | 4 5 | x | ( | 200 | − | ( | 1 | − | 1 100 | x | ) | ) |
| 1600 | = | 1600 | − | 8 | ( | 1 | − | 1 100 | x | ) | + | 4 5 | x | ( | 200 | − | ( | 1 | − | 1 100 | x | ) | ) |
| 1600 | = | 1600 | − | 8 | × | 1 | + | 8 | × | 1 100 | x | + | 4 5 | x | ( | 200 | − | ( | 1 | − | 1 100 | x | ) | ) |
| 1600 | = | 1600 | − | 8 | + | 2 25 | x | + | 4 5 | x | ( | 200 | − | ( | 1 | − | 1 100 | x | ) | ) |
| 1600 | = | 1592 | + | 2 25 | x | + | 4 5 | x | ( | 200 | − | ( | 1 | − | 1 100 | x | ) | ) |
| 1600 | = | 1592 | + | 2 25 | x | + | 4 5 | x | × | 200 | − | 4 5 | x | ( | 1 | − | 1 100 | x | ) |
| 1600 | = | 1592 | + | 2 25 | x | + | 160 | x | − | 4 5 | x | ( | 1 | − | 1 100 | x | ) |
| 1600 | = | 1592 | + | 4002 25 | x | − | 4 5 | x | ( | 1 | − | 1 100 | x | ) |
| 1600 | = | 1592 | + | 4002 25 | x | − | 4 5 | x | × | 1 | + | 4 5 | x | × | 1 100 | x |
| 1600 | = | 1592 | + | 4002 25 | x | − | 4 5 | x | + | 1 125 | x | x |
| 1600 | = | 1592 | + | 3982 25 | x | + | 1 125 | x | x |