1 10 | = | 2 25 | ( | 1 | ÷ | 11 20 | ) | ( | 1 | − | X | ) | ÷ | 1 | − | 2 25 | ( | 1 | ÷ | 11 20 | ) | ( | 1 | − | X | ) |
方程右边 = | 2 25 | ( | 1 | ÷ | 11 20 | ) | ( | 1 | − | X | ) | − | 2 25 | ( | 1 | ÷ | 11 20 | ) | ( | 1 | − | X | ) |
1 10 | = | 2 25 | ( | 1 | ÷ | 11 20 | ) | ( | 1 | − | X | ) | − | 2 25 | ( | 1 | ÷ | 11 20 | ) | ( | 1 | − | X | ) |
方程右边 = | 2 25 | × | 1 | ÷ | 11 20 | × | ( | 1 | − | X | ) | − | 2 25 | ( | 1 | ÷ | 11 20 | ) | ( | 1 | − | X | ) |
= | 8 55 | ( | 1 | − | X | ) | − | 2 25 | ( | 1 | ÷ | 11 20 | ) | ( | 1 | − | X | ) |
= | 8 55 | × | 1 | − | 8 55 | X | − | 2 25 | ( | 1 | ÷ | 11 20 | ) | ( | 1 | − | X | ) |
= | 8 55 | − | 8 55 | X | − | 2 25 | ( | 1 | ÷ | 11 20 | ) | ( | 1 | − | X | ) |
= | 8 55 | − | 8 55 | X | − | 2 25 | × | 1 | ÷ | 11 20 | × | ( | 1 | − | X | ) |
= | 8 55 | − | 8 55 | X | − | 8 55 | ( | 1 | − | X | ) |
= | 8 55 | − | 8 55 | X | − | 8 55 | × | 1 | + | 8 55 | X |
= | 8 55 | − | 8 55 | X | − | 8 55 | + | 8 55 | X |
= | 0 | − | 0 | X |
1 10 | = | 0 | − | 0 | X |
= | - | 0 | − | 1 10 |