78 5 | x | + | 43 10 | ( | 100 | − | x | ) | ÷ | 100 | = | 46 5 |
方程左边 = | 78 5 | x | + | 43 1000 | ( | 100 | − | x | ) |
78 5 | x | + | 43 1000 | ( | 100 | − | x | ) | = | 46 5 |
方程左边 = | 78 5 | x | + | 43 1000 | × | 100 | − | 43 1000 | x |
= | 78 5 | x | + | 43 10 | − | 43 1000 | x |
= | 15557 1000 | x | + | 43 10 |
15557 1000 | x | + | 43 10 | = | 46 5 |
15557 1000 | x | = | 46 5 | − | 43 10 |
15557 1000 | x | = | 49 10 |
x | = | 49 10 | ÷ | 15557 1000 |
= | 49 10 | × | 1000 15557 |
= | 49 | × | 100 15557 |
x | = | 4900 15557 |
x | = | 0.314971 |