( | 3 | x | − | 48 | ) | ÷ | ( | 2 | x | + | 48 | ) | = | 2 | ÷ | 3 |
方程两边同时乘以: | ( | 2 | x | + | 48 | ) |
( | 3 | x | − | 48 | ) | = | 2 | ÷ | 3 | × | ( | 2 | x | + | 48 | ) |
3 | x | − | 48 | = | 2 | ÷ | 3 | × | ( | 2 | x | + | 48 | ) |
3 | x | − | 48 | = | 2 | ÷ | 3 | × | 2 | x | + | 2 | ÷ | 3 | × | 48 |
3 | x | − | 48 | = | 4 3 | x | + | 32 |
3 | x | − | 4 3 | x | = | 32 | + | 48 |
5 3 | x | = | 32 | + | 48 |
5 3 | x | = | 80 |
x | = | 80 | ÷ | 5 3 |
= | 80 | × | 3 5 |
= | 16 | × | 3 |
x | = | 48 |