( | x | − | 4 | ) | ÷ | 76 100 | + | 4 | = | x | ÷ | 7 | ÷ | 9 |
方程左边 = | x | × | 100 76 | − | 4 | × | 100 76 | + | 4 |
= | x | × | 100 76 | − | 100 19 | + | 4 |
= | 100 76 | x | − | 24 19 |
100 76 | x | − | 24 19 | = | x | ÷ | 7 | ÷ | 9 |
方程右边 = | x | × | 1 63 |
100 76 | x | − | 24 19 | = | 1 63 | x |
100 76 | x | − | 1 63 | x | = | 24 19 |
1556 1197 | x | = | 24 19 |
x | = | 24 19 | ÷ | 1556 1197 |
= | 24 19 | × | 1197 1556 |
= | 6 | × | 63 389 |
x | = | 378 389 |
x | = | 0.971722 |