X | + | 1 | ÷ | ( | 1 | − | X | ) | + | 1 | − | 1 | ÷ | X | = | 19 | ÷ | 6 |
方程两边同时乘以: | ( | 1 | − | X | ) |
X | ( | 1 | − | X | ) | + | 1 | + | 1 | ( | 1 | − | X | ) | − | 1 | ÷ | X | × | ( | 1 | − | X | ) | = | 19 | ÷ | 6 | × | ( | 1 | − | X | ) |
X | × | 1 | − | X | X | + | 1 | + | 1 | ( | 1 | − | X | ) | − | 1 | ÷ | X | × | ( | 1 | − | X | ) | = | 19 | ÷ | 6 | × | ( | 1 | − | X | ) |
X | × | 1 | − | X | X | + | 1 | + | 1 | ( | 1 | − | X | ) | − | 1 | ÷ | X | × | ( | 1 | − | X | ) | = | 19 | ÷ | 6 | × | 1 | − | 19 | ÷ | 6 | × | X |
X | × | 1 | − | X | X | + | 1 | + | 1 | ( | 1 | − | X | ) | − | 1 | ÷ | X | × | ( | 1 | − | X | ) | = | 19 6 | − | 19 6 | X |
方程两边同时乘以: | X |
1 | X | X | − | X | X | X | + | 1 | X | + | 1 | ( | 1 | − | X | ) | X | − | 1 | = | 19 6 | X | − | 19 6 | X | X |
1 | X | X | − | X | X | X | + | 1 | X | + | 1 | × | 1 | X | − | 1 | = | 19 6 | X | − | 19 6 | X | X |
1 | X | X | − | X | X | X | + | 1 | X | + | 1 | X | − | 1 | X | = | 19 6 | X | − | 19 6 | X | X |
1 | X | X | − | X | X | X | + | 2 | X | − | 1 | X | X | − | 1 | = | 19 6 | X | − | 19 6 | X | X |
1 | X | X | − | X | X | X | + | 2 | X | − | 1 | X | X | − | 1 | = | 19 6 | X | − | 19 6 | X | X |
1 | X | X | − | X | X | X | + | 2 | X | − | 1 | X | X | − | 1 | = | 19 6 | X | − | 19 6 | X | X |
1 | X | X | − | X | X | X | + | 3 | X | − | 1 | X | X | − | 1 | = | 19 6 | X | − | 19 6 | X | X |
X1= | - | 1 2 |
X2= | 2 3 |
X3=3 |