( | d | + | 77 20 | ) | ( | d | + | 5 | ) | ( | d | + | 7143 1000 | ) | ( | d | + | 20 | ) | + | d | ( | d | + | 77 20 | ) | ( | d | + | 7143 1000 | ) | ( | d | + | 20 | ) | + | d | ( | d | + | 5 | ) | ( | d | + | 77 20 | ) | ( | d | + | 7143 1000 | ) | = | d | ( | d | + | 5 | ) | ( | d | + | 7143 1000 | ) | ( | d | + | 20 | ) |
方程左边 = | d | ( | d | + | 5 | ) | ( | d | + | 7143 1000 | ) | ( | d | + | 20 | ) | + | 77 20 | ( | d | + | 5 | ) | ( | d | + | 7143 1000 | ) | ( | d | + | 20 | ) | + | d | ( | d | + | 77 20 | ) | ( | d | + | 7143 1000 | ) | ( | d | + | 20 | ) |
= | d | d | ( | d | + | 7143 1000 | ) | ( | d | + | 20 | ) | + | d | × | 5 | ( | d | + | 7143 1000 | ) | ( | d | + | 20 | ) | + | 77 20 | ( | d | + | 5 | ) | ( | d | + | 7143 1000 | ) | ( | d | + | 20 | ) |
= | d | d | d | ( | d | + | 20 | ) | + | d | d | × | 7143 1000 | ( | d | + | 20 | ) | + | d | × | 5 | ( | d | + | 7143 1000 | ) | ( | d | + | 20 | ) |
= | d | d | d | d | + | d | d | d | × | 20 | + | d | d | × | 7143 1000 | ( | d | + | 20 | ) |
= | d | d | d | d | + | d | d | d | × | 20 | + | d | d | × | 7143 1000 | d |
= | d | d | d | d | + | d | d | d | × | 20 | + | d | d | × | 7143 1000 | d |
= | d | d | d | d | + | d | d | d | × | 20 | + | d | d | × | 7143 1000 | d |
= | d | d | d | d | + | d | d | d | × | 20 | + | d | d | × | 7143 1000 | d |
= | d | d | d | d | + | d | d | d | × | 20 | + | d | d | × | 7143 1000 | d |
= | d | d | d | d | + | d | d | d | × | 20 | + | d | d | × | 7143 1000 | d |
= | d | d | d | d | + | d | d | d | × | 20 | + | d | d | × | 7143 1000 | d |
= | d | d | d | d | + | d | d | d | × | 20 | + | d | d | × | 7143 1000 | d |
= | d | d | d | d | + | d | d | d | × | 20 | + | d | d | × | 7143 1000 | d |
= | d | d | d | d | + | d | d | d | × | 20 | + | d | d | × | 7143 1000 | d |
= | d | d | d | d | + | d | d | d | × | 20 | + | d | d | × | 7143 1000 | d |
= | d | d | d | d | + | d | d | d | × | 20 | + | d | d | × | 7143 1000 | d |
= | d | d | d | d | + | d | d | d | × | 20 | + | d | d | × | 7143 1000 | d |
= | d | d | d | d | + | d | d | d | × | 20 | + | d | d | × | 7143 1000 | d |
= | d | d | d | d | + | d | d | d | × | 20 | + | d | d | × | 7143 1000 | d |
= | d | d | d | d | + | d | d | d | × | 20 | + | d | d | × | 7143 1000 | d |
= | d | d | d | d | + | d | d | d | × | 20 | + | d | d | × | 7143 1000 | d |
= | d | d | d | d | + | d | d | d | × | 20 | + | d | d | × | 7143 1000 | d |
= | d | d | d | d | + | d | d | d | × | 20 | + | d | d | × | 7143 1000 | d |
= | d | d | d | d | + | d | d | d | × | 20 | + | d | d | × | 7143 1000 | d |
= | d | d | d | d | + | d | d | d | × | 20 | + | d | d | × | 7143 1000 | d |
d1= | - | 7143 1000 |