( | 5 | x | + | 10 | ) | ÷ | ( | x | + | 10 | ) | = | 5 | ÷ | 2 |
方程两边同时乘以: | ( | x | + | 10 | ) |
( | 5 | x | + | 10 | ) | = | 5 | ÷ | 2 | × | ( | x | + | 10 | ) |
5 | x | + | 10 | = | 5 | ÷ | 2 | × | ( | x | + | 10 | ) |
5 | x | + | 10 | = | 5 | ÷ | 2 | × | x | + | 5 | ÷ | 2 | × | 10 |
5 | x | + | 10 | = | 5 2 | x | + | 25 |
5 | x | − | 5 2 | x | = | 25 | − | 10 |
5 2 | x | = | 25 | − | 10 |
5 2 | x | = | 15 |
x | = | 15 | ÷ | 5 2 |
= | 15 | × | 2 5 |
= | 3 | × | 2 |
x | = | 6 |