100 | × | 3 | ÷ | 5 | + | ( | 100 | × | 3 | ÷ | 5 | + | 6 | ) | − | x | = | 100 | − | ( | x | ÷ | 3 | + | 2 | ) |
方程左边 = | 60 | + | ( | 100 | × | 3 | ÷ | 5 | + | 6 | ) | − | x |
60 | + | ( | 100 | × | 3 | ÷ | 5 | + | 6 | ) | − | x | = | 100 | − | ( | x | ÷ | 3 | + | 2 | ) |
方程左边 = | 60 | + | 100 | × | 3 | ÷ | 5 | + | 6 | − | x |
= | 60 | + | 60 | + | 6 | − | x |
= | 126 | − | x |
126 | − | x | = | 100 | − | ( | x | ÷ | 3 | + | 2 | ) |
方程右边 = | 100 | − | x | ÷ | 3 | − | 2 |
= | 98 | − | 1 3 | x |
126 | − | x | = | 98 | − | 1 3 | x |
- | x | + | 1 3 | x | = | 98 | − | 126 |
- | 2 3 | x | = | 98 | − | 126 |
- | 2 3 | x | = | - | 28 |
28 | = | 2 3 | x |
2 3 | x | = | 28 |
x | = | 28 | ÷ | 2 3 |
= | 28 | × | 3 2 |
= | 14 | × | 3 |
x | = | 42 |