3 | x | + | 3 | x | + | 2 | ÷ | x | + | 6 | ÷ | ( | x | + | x | ) | + | 12 | ÷ | ( | x | + | 2 | x | ) | = | 21 |
方程两边同时乘以: | x |
3 | x | x | + | 3 | x | x | + | 2 | + | 6 | ÷ | ( | x | + | x | ) | × | x | + | 12 | ÷ | ( | x | + | 2 | x | ) | = | 21 | x |
方程两边同时乘以: | ( | x | + | x | ) |
3 | x | x | ( | x | + | x | ) | + | 3 | x | x | ( | x | + | x | ) | + | 2 | ( | x | + | x | ) | + | 6 | x | = | 21 | x | ( | x | + | x | ) |
3 | x | x | x | + | 3 | x | x | x | + | 3 | x | x | ( | x | + | x | ) | = | 21 | x | ( | x | + | x | ) |
3 | x | x | x | + | 3 | x | x | x | + | 3 | x | x | ( | x | + | x | ) | = | 21 | x | x | + | 21 | x | x |
方程两边同时乘以: | ( | x | + | 2 | x | ) |
3 | x | x | x | ( | x | + | 2 | x | ) | + | 3 | x | x | x | ( | x | + | 2 | x | ) | + | 3 | x | = | 21 | x | x | ( | x | + | 2 | x | ) | + | 21 | x | x | ( | x | + | 2 | x | ) |
3 | x | x | x | x | + | 3 | x | x | x | × | 2 | x | + | 3 | = | 21 | x | x | ( | x | + | 2 | x | ) | + | 21 | x | x | ( | x | + | 2 | x | ) |
3 | x | x | x | x | + | 3 | x | x | x | × | 2 | x | + | 3 | = | 21 | x | x | x | + | 21 | x | x | × | 2 | x | + | 21 | x | x |
3 | x | x | x | x | + | 6 | x | x | x | x | + | 3 | x | = | 21 | x | x | x | + | 42 | x | x | x | + | 21 | x | x | ( | x | + | 2 | x | ) |
3 | x | x | x | x | + | 6 | x | x | x | x | + | 3 | x | = | 21 | x | x | x | + | 42 | x | x | x | + | 21 | x | x | ( | x | + | 2 | x | ) |
3 | x | x | x | x | + | 6 | x | x | x | x | + | 3 | x | = | 21 | x | x | x | + | 42 | x | x | x | + | 21 | x | x | x |
3 | x | x | x | x | + | 6 | x | x | x | x | + | 3 | x | = | 21 | x | x | x | + | 42 | x | x | x | + | 21 | x | x | x |
3 | x | x | x | x | + | 6 | x | x | x | x | + | 3 | x | = | 21 | x | x | x | + | 42 | x | x | x | + | 21 | x | x | x |
3 | x | x | x | x | + | 6 | x | x | x | x | + | 3 | x | = | 21 | x | x | x | + | 42 | x | x | x | + | 21 | x | x | x |
3 | x | x | x | x | + | 6 | x | x | x | x | + | 3 | x | = | 21 | x | x | x | + | 42 | x | x | x | + | 21 | x | x | x |
3 | x | x | x | x | + | 6 | x | x | x | x | + | 3 | x | = | 21 | x | x | x | + | 42 | x | x | x | + | 21 | x | x | x |
3 | x | x | x | x | + | 6 | x | x | x | x | + | 3 | x | = | 21 | x | x | x | + | 42 | x | x | x | + | 21 | x | x | x |
3 | x | x | x | x | + | 6 | x | x | x | x | + | 3 | x | = | 21 | x | x | x | + | 42 | x | x | x | + | 21 | x | x | x |
3 | x | x | x | x | + | 6 | x | x | x | x | + | 3 | x | = | 21 | x | x | x | + | 42 | x | x | x | + | 21 | x | x | x |
3 | x | x | x | x | + | 6 | x | x | x | x | + | 3 | x | = | 21 | x | x | x | + | 42 | x | x | x | + | 21 | x | x | x |
3 | x | x | x | x | + | 6 | x | x | x | x | + | 3 | x | = | 21 | x | x | x | + | 42 | x | x | x | + | 21 | x | x | x |
3 | x | x | x | x | + | 6 | x | x | x | x | + | 3 | x | = | 21 | x | x | x | + | 42 | x | x | x | + | 21 | x | x | x |
3 | x | x | x | x | + | 6 | x | x | x | x | + | 3 | x | = | 21 | x | x | x | + | 42 | x | x | x | + | 21 | x | x | x |
3 | x | x | x | x | + | 6 | x | x | x | x | + | 3 | x | = | 21 | x | x | x | + | 42 | x | x | x | + | 21 | x | x | x |
x1= | 1 2 |
x2=3 |