( | x | − | 3 | ) | ÷ | 5 | − | ( | x | + | 4 | ) | ÷ | 2 | = | - | 44 |
方程左边 = | x | × | 1 5 | − | 3 | × | 1 5 | − | ( | x | + | 4 | ) | × | 1 2 |
= | x | × | 1 5 | − | 3 5 | − | ( | x | + | 4 | ) | × | 1 2 |
= | 1 5 | x | − | 3 5 | − | x | × | 1 2 | − | 4 | × | 1 2 |
= | 1 5 | x | − | 3 5 | − | x | × | 1 2 | − | 2 |
= | - | 3 10 | x | − | 13 5 |
- | 3 10 | x | − | 13 5 | = | - | 44 |
- | 3 10 | x | = | - | 44 | + | 13 5 |
- | 3 10 | x | = | - | 207 5 |
207 5 | = | 3 10 | x |
3 10 | x | = | 207 5 |
x | = | 207 5 | ÷ | 3 10 |
= | 207 5 | × | 10 3 |
= | 69 | × | 2 |
x | = | 138 |