( | ( | x | − | x | ) | − | 21 5 | ) | + | 1 | ÷ | 69 10 | = | 1 | ÷ | 243 100 | × | 257 625 |
方程左边 = | ( | ( | x | − | x | ) | − | 21 5 | ) | + | 10 69 |
( | ( | x | − | x | ) | − | 21 5 | ) | + | 10 69 | = | 1 | ÷ | 243 100 | × | 257 625 |
方程左边 = | ( | x | − | x | ) | − | 21 5 | + | 10 69 |
= | ( | x | − | x | ) | − | 1399 345 |
= | x | − | x | − | 1399 345 |
= | 0 | x | − | 1399 345 |
- | 1399 345 | = | 1 | ÷ | 243 100 | × | 257 625 |
方程右边 = | 1028 6075 |
- | 1399 345 | = | 1028 6075 |
= | 1028 6075 | + | 1399 345 |