( | 104000 | − | x | ) | ( | 1 | + | 8 100 | ) | = | x |
方程左边 = | 104000 | ( | 1 | + | 8 100 | ) | − | x | ( | 1 | + | 8 100 | ) |
= | 104000 | × | 1 | + | 104000 | × | 8 100 | − | x | ( | 1 | + | 8 100 | ) |
= | 104000 | + | 8320 | − | x | ( | 1 | + | 8 100 | ) |
= | 112320 | − | x | ( | 1 | + | 8 100 | ) |
= | 112320 | − | x | × | 1 | − | x | × | 8 100 |
= | 112320 | − | 27 25 | x |
112320 | − | 27 25 | x | = | x |
- | 27 25 | x | − | x | = | - | 112320 |
- | 52 25 | x | = | - | 112320 |
112320 | = | 52 25 | x |
52 25 | x | = | 112320 |
x | = | 112320 | ÷ | 52 25 |
= | 112320 | × | 25 52 |
= | 2160 | × | 25 |
x | = | 54000 |