( | 2 5 | x | + | 9 10 | ) | ÷ | 1 2 | − | ( | 3 100 | + | 1 50 | x | ) | ÷ | 3 100 | = | x | − | 5 | ÷ | 2 |
方程左边 = | 2 5 | x | × | 2 | + | 9 10 | × | 2 | − | ( | 3 100 | + | 1 50 | x | ) | × | 100 3 |
= | 4 5 | x | + | 9 5 | − | ( | 3 100 | + | 1 50 | x | ) | × | 100 3 |
= | 4 5 | x | + | 9 5 | − | 3 100 | × | 100 3 | − | 1 50 | x | × | 100 3 |
= | 4 5 | x | + | 9 5 | − | 1 | − | 2 3 | x |
= | 2 15 | x | + | 4 5 |
2 15 | x | + | 4 5 | = | x | − | 5 | ÷ | 2 |
方程右边 = | x | − | 5 2 |
2 15 | x | + | 4 5 | = | x | − | 5 2 |
2 15 | x | − | x | = | - | 5 2 | − | 4 5 |
- | 13 15 | x | = | - | 5 2 | − | 4 5 |
- | 13 15 | x | = | - | 33 10 |
33 10 | = | 13 15 | x |
13 15 | x | = | 33 10 |
x | = | 33 10 | ÷ | 13 15 |
= | 33 10 | × | 15 13 |
= | 33 2 | × | 3 13 |
x | = | 99 26 |
x | = | 3.807692 |