3 | ÷ | 4 | × | ( | 2 | x | − | 5 | ) | + | 1 | ÷ | 6 | × | ( | x | + | 7 | ) | = | 2 | ÷ | 3 | × | ( | x | − | 2 | ) |
方程左边 = | 3 4 | ( | 2 | x | − | 5 | ) | + | 1 6 | ( | x | + | 7 | ) |
3 4 | ( | 2 | x | − | 5 | ) | + | 1 6 | ( | x | + | 7 | ) | = | 2 | ÷ | 3 | × | ( | x | − | 2 | ) |
方程左边 = | 3 4 | × | 2 | x | − | 3 4 | × | 5 | + | 1 6 | ( | x | + | 7 | ) |
= | 3 2 | x | − | 15 4 | + | 1 6 | ( | x | + | 7 | ) |
= | 3 2 | x | − | 15 4 | + | 1 6 | x | + | 1 6 | × | 7 |
= | 3 2 | x | − | 15 4 | + | 1 6 | x | + | 7 6 |
= | 5 3 | x | − | 31 12 |
5 3 | x | − | 31 12 | = | 2 | ÷ | 3 | × | ( | x | − | 2 | ) |
方程右边 = | 2 3 | ( | x | − | 2 | ) |
5 3 | x | − | 31 12 | = | 2 3 | ( | x | − | 2 | ) |
方程右边 = | 2 3 | x | − | 2 3 | × | 2 |
= | 2 3 | x | − | 4 3 |
5 3 | x | − | 31 12 | = | 2 3 | x | − | 4 3 |
5 3 | x | − | 2 3 | x | = | - | 4 3 | + | 31 12 |
x | = | - | 4 3 | + | 31 12 |
x | = | - | 4 3 | + | 31 12 |
x | = | 5 4 |