( | x | − | 104 | ) | ÷ | 104 | = | ( | x | − | 100 | ) | ÷ | 100 | − | 5 100 |
方程左边 = | x | × | 1 104 | − | 104 | × | 1 104 |
= | x | × | 1 104 | − | 1 |
1 104 | x | − | 1 | = | ( | x | − | 100 | ) | ÷ | 100 | − | 5 100 |
方程右边 = | x | × | 1 100 | − | 100 | × | 1 100 | − | 5 100 |
= | x | × | 1 100 | − | 1 | − | 5 100 |
= | 1 100 | x | − | 21 20 |
1 104 | x | − | 1 | = | 1 100 | x | − | 21 20 |
1 104 | x | − | 1 100 | x | = | - | 21 20 | + | 1 |
- | 1 2600 | x | = | - | 21 20 | + | 1 |
- | 1 2600 | x | = | - | 1 20 |
1 20 | = | 1 2600 | x |
1 2600 | x | = | 1 20 |
x | = | 1 20 | ÷ | 1 2600 |
= | 1 20 | × | 2600 |
= | 1 | × | 130 |
x | = | 130 |