| - | 4181899545791 1000000000000 | = | ( | - | 2 | − | ( | x | − | 1 | ) | × | 1000 | ÷ | 200 | ÷ | ( | 1 | − | 323 100 | ÷ | 1000 | ÷ | x | × | ( | x | − | 1 | ) | × | 1000 | ÷ | 200 | ) | ) | ( | 3 2 | − | 1 | ) | ÷ | ( | x | − | 1 | ) |
| 方程两边同时乘以: | ( | x | − | 1 | ) |
| - | 4181899545791 1000000000000 | ( | x | − | 1 | ) | = | ( | - | 2 | − | ( | x | − | 1 | ) | × | 1000 | ÷ | 200 | ÷ | ( | 1 | − | 323 100 | ÷ | 1000 | ÷ | x | × | ( | x | − | 1 | ) | × | 1000 | ÷ | 200 | ) | ) | ( | 3 2 | − | 1 | ) |
| - | 4181899545791 1000000000000 | x | + | 4181899545791 1000000000000 | × | 1 | = | ( | - | 2 | − | ( | x | − | 1 | ) | × | 1000 | ÷ | 200 | ÷ | ( | 1 | − | 323 100 | ÷ | 1000 | ÷ | x | × | ( | x | − | 1 | ) | × | 1000 | ÷ | 200 | ) | ) | ( | 3 2 | − | 1 | ) |
| - | 4181899545791 1000000000000 | x | + | 4181899545791 1000000000000 | × | 1 | = | - | 2 | ( | 3 2 | − | 1 | ) | − | ( | x | − | 1 | ) | × | 1000 | ÷ | 200 | ÷ | ( | 1 | − | 323 100 | ÷ | 1000 | ÷ | x | × | ( | x | − | 1 | ) | × | 1000 | ÷ | 200 | ) | × | ( | 3 2 | − | 1 | ) |
| x1= | 8 5 |