| x | ÷ | ( | 1 25 | − | x | ) | ÷ | ( | 6 5 | − | 2 | x | ) | ÷ | ( | 6 5 | − | 2 | x | ) | = | 16200000 |
| 方程两边同时乘以: | ( | 1 25 | − | x | ) |
| x | ÷ | ( | 6 5 | − | 2 | x | ) | ÷ | ( | 6 5 | − | 2 | x | ) | = | 16200000 | ( | 1 25 | − | x | ) |
| x | ÷ | ( | 6 5 | − | 2 | x | ) | ÷ | ( | 6 5 | − | 2 | x | ) | = | 16200000 | × | 1 25 | − | 16200000 | x |
| x | ÷ | ( | 6 5 | − | 2 | x | ) | ÷ | ( | 6 5 | − | 2 | x | ) | = | 648000 | − | 16200000 | x |
| 方程两边同时乘以: | ( | 6 5 | − | 2 | x | ) |
| x | ÷ | ( | 6 5 | − | 2 | x | ) | = | 648000 | ( | 6 5 | − | 2 | x | ) | − | 16200000 | x | ( | 6 5 | − | 2 | x | ) |
| x | ÷ | ( | 6 5 | − | 2 | x | ) | = | 648000 | × | 6 5 | − | 648000 | × | 2 | x | − | 16200000 | x | ( | 6 5 | − | 2 | x | ) |
| x | ÷ | ( | 6 5 | − | 2 | x | ) | = | 777600 | − | 1296000 | x | − | 16200000 | x | ( | 6 5 | − | 2 | x | ) |
| 方程两边同时乘以: | ( | 6 5 | − | 2 | x | ) |
| x | = | 777600 | ( | 6 5 | − | 2 | x | ) | − | 1296000 | x | ( | 6 5 | − | 2 | x | ) | − | 16200000 | x | ( | 6 5 | − | 2 | x | ) | ( | 6 5 | − | 2 | x | ) |
| x | = | 777600 | × | 6 5 | − | 777600 | × | 2 | x | − | 1296000 | x | ( | 6 5 | − | 2 | x | ) | − | 16200000 | x | ( | 6 5 | − | 2 | x | ) | ( | 6 5 | − | 2 | x | ) |
| x | = | 933120 | − | 1555200 | x | − | 1296000 | x | ( | 6 5 | − | 2 | x | ) | − | 16200000 | x | ( | 6 5 | − | 2 | x | ) | ( | 6 5 | − | 2 | x | ) |
| x | = | 933120 | − | 1555200 | x | − | 1296000 | x | × | 6 5 | + | 1296000 | x | × | 2 | x | − | 16200000 | x |
| x | = | 933120 | − | 1555200 | x | − | 1555200 | x | + | 2592000 | x | x | − | 16200000 | x | ( | 6 5 | − | 2 | x | ) | ( | 6 5 | − | 2 | x | ) |
| x | = | 933120 | − | 3110400 | x | + | 2592000 | x | x | − | 16200000 | x | ( | 6 5 | − | 2 | x | ) | ( | 6 5 | − | 2 | x | ) |
| x | = | 933120 | − | 3110400 | x | + | 2592000 | x | x | − | 16200000 | x | × | 6 5 | ( | 6 5 | − | 2 | x | ) | + | 16200000 | x |
| x | = | 933120 | − | 3110400 | x | + | 2592000 | x | x | − | 19440000 | x | ( | 6 5 | − | 2 | x | ) | + | 32400000 | x | x |
| x | = | 933120 | − | 3110400 | x | + | 2592000 | x | x | − | 19440000 | x | × | 6 5 | + | 19440000 | x | × | 2 |
| x | = | 933120 | − | 3110400 | x | + | 2592000 | x | x | − | 23328000 | x | + | 38880000 | x | x | + | 32400000 |
| x | = | 933120 | − | 26438400 | x | + | 2592000 | x | x | + | 38880000 | x | x | + | 32400000 | x | x |
| x | = | 933120 | − | 26438400 | x | + | 2592000 | x | x | + | 38880000 | x | x | + | 32400000 | x | x |
| x | = | 933120 | − | 26438400 | x | + | 2592000 | x | x | + | 38880000 | x | x | + | 38880000 | x | x |