100 | − | x | ÷ | 80 | − | x | = | - | 49 | ÷ | 48 |
方程左边 = | 100 | − | 81 80 | x |
100 | − | 81 80 | x | = | - | 49 | ÷ | 48 |
方程右边 = | - | 49 48 |
100 | − | 81 80 | x | = | - | 49 48 |
- | 81 80 | x | = | - | 49 48 | − | 100 |
- | 81 80 | x | = | - | 4849 48 |
4849 48 | = | 81 80 | x |
81 80 | x | = | 4849 48 |
x | = | 4849 48 | ÷ | 81 80 |
= | 4849 48 | × | 80 81 |
= | 4849 3 | × | 5 81 |
x | = | 24245 243 |
x | = | 99.773663 |