( | 40221 1000 | + | x | ) | × | 31 20 | = | 40221 1000 | + | 17893 250 | + | x |
方程左边 = | 40221 1000 | × | 31 20 | + | x | × | 31 20 |
= | 1246851 20000 | + | x | × | 31 20 |
1246851 20000 | + | 31 20 | x | = | 40221 1000 | + | 17893 250 | + | x |
方程右边 = | 111793 1000 | + | x |
1246851 20000 | + | 31 20 | x | = | 111793 1000 | + | x |
31 20 | x | − | x | = | 111793 1000 | − | 1246851 20000 |
11 20 | x | = | 111793 1000 | − | 1246851 20000 |
11 20 | x | = | 989009 20000 |
x | = | 989009 20000 | ÷ | 11 20 |
= | 989009 20000 | × | 20 11 |
= | 989009 1000 | × | 1 11 |
x | = | 989009 11000 |
x | = | 89.909909 |