( | 1 | − | 4 | ÷ | 7 | × | x | ) | = | ( | 1 | − | 40 100 | ) | ( | x | + | 18 | ) |
方程左边 = | 1 | − | 4 | ÷ | 7 | × | x |
= | 1 | − | 4 7 | x |
1 | − | 4 7 | x | = | ( | 1 | − | 40 100 | ) | ( | x | + | 18 | ) |
方程右边 = | 1 | ( | x | + | 18 | ) | − | 40 100 | ( | x | + | 18 | ) |
= | 1 | x | + | 1 | × | 18 | − | 40 100 | ( | x | + | 18 | ) |
= | 1 | x | + | 18 | − | 40 100 | ( | x | + | 18 | ) |
= | 1 | x | + | 18 | − | 40 100 | x | − | 40 100 | × | 18 |
= | 1 | x | + | 18 | − | 40 100 | x | − | 36 5 |
= | 3 5 | x | + | 54 5 |
1 | − | 4 7 | x | = | 3 5 | x | + | 54 5 |
- | 4 7 | x | − | 3 5 | x | = | 54 5 | − | 1 |
- | 41 35 | x | = | 54 5 | − | 1 |
- | 41 35 | x | = | 49 5 |
- | 49 5 | = | 41 35 | x |
41 35 | x | = | - | 49 5 |
x | = | - | 49 5 | ÷ | 41 35 |
= | - | 49 5 | × | 35 41 |
= | - | 49 | × | 7 41 |
x | = | - | 343 41 |
x | = | - 8.365854 |