( | 10000 | x | + | 5000 | ) | ( | 97 100 | + | x | ) | × | 4 5 | = | 5588 |
方程左边 = | 10000 | x | ( | 97 100 | + | x | ) | × | 4 5 | + | 5000 | ( | 97 100 | + | x | ) | × | 4 5 |
= | 8000 | x | ( | 97 100 | + | x | ) | + | 4000 | ( | 97 100 | + | x | ) |
= | 8000 | x | × | 97 100 | + | 8000 | x | x | + | 4000 | ( | 97 100 | + | x | ) |
= | 7760 | x | + | 8000 | x | x | + | 4000 | ( | 97 100 | + | x | ) |
= | 7760 | x | + | 8000 | x | x | + | 4000 | × | 97 100 | + | 4000 | x |
= | 7760 | x | + | 8000 | x | x | + | 3880 | + | 4000 | x |
= | 11760 | x | + | 8000 | x | x | + | 3880 |
11760 | x | + | 8000 | x | x | + | 3880 | = | 5588 |