( | 40221 1000 | + | x | ) | × | 31 20 | = | 40221 1000 | + | 36121 500 | − | x |
方程左边 = | 40221 1000 | × | 31 20 | + | x | × | 31 20 |
= | 1246851 20000 | + | x | × | 31 20 |
1246851 20000 | + | 31 20 | x | = | 40221 1000 | + | 36121 500 | − | x |
方程右边 = | 112463 1000 | − | x |
1246851 20000 | + | 31 20 | x | = | 112463 1000 | − | x |
31 20 | x | + | x | = | 112463 1000 | − | 1246851 20000 |
51 20 | x | = | 112463 1000 | − | 1246851 20000 |
51 20 | x | = | 1002409 20000 |
x | = | 1002409 20000 | ÷ | 51 20 |
= | 1002409 20000 | × | 20 51 |
= | 1002409 1000 | × | 1 51 |
x | = | 1002409 51000 |
x | = | 19.655078 |