| ( | 8943 100 | − | 1563 20 | ) | ÷ | ( | 1563 20 | − | 7841 100 | ) | = | ( | 4073 50 | − | 1563 20 | ) | ÷ | ( | x | − | 7841 100 | ) |
| 方程两边同时乘以: | ( | 1563 20 | − | 7841 100 | ) | , | ( | x | − | 7841 100 | ) |
| ( | 8943 100 | − | 1563 20 | ) | ( | x | − | 7841 100 | ) | = | ( | 4073 50 | − | 1563 20 | ) | ( | 1563 20 | − | 7841 100 | ) |
8943 100 | ( | x | − | 7841 100 | ) | − | 1563 20 | ( | x | − | 7841 100 | ) | = | ( | 4073 50 | − | 1563 20 | ) | ( | 1563 20 | − | 7841 100 | ) |
8943 100 | ( | x | − | 7841 100 | ) | − | 1563 20 | ( | x | − | 7841 100 | ) | = | 4073 50 | ( | 1563 20 | − | 7841 100 | ) | − | 1563 20 | ( | 1563 20 | − | 7841 100 | ) |
8943 100 | x | − | 8943 100 | × | 7841 100 | − | 1563 20 | ( | x | − | 7841 100 | ) | = | 4073 50 | ( | 1563 20 | − | 7841 100 | ) | − | 1563 20 | ( | 1563 20 | − | 7841 100 | ) |
8943 100 | x | − | 8943 100 | × | 7841 100 | − | 1563 20 | ( | x | − | 7841 100 | ) | = | 4073 50 | × | 1563 20 | − | 4073 50 | × | 7841 100 | − | 1563 20 | ( | 1563 20 | − | 7841 100 | ) |
8943 100 | x | − | 70122063 10000 | − | 1563 20 | ( | x | − | 7841 100 | ) | = | 6366099 1000 | − | 31936393 5000 | − | 1563 20 | ( | 1563 20 | − | 7841 100 | ) |
8943 100 | x | − | 70122063 10000 | − | 1563 20 | ( | x | − | 7841 100 | ) | = | - | 52949 2500 | − | 1563 20 | ( | 1563 20 | − | 7841 100 | ) |
8943 100 | x | − | 70122063 10000 | − | 1563 20 | x | + | 1563 20 | × | 7841 100 | = | - | 52949 2500 | − | 1563 20 | ( | 1563 20 | − | 7841 100 | ) |
8943 100 | x | − | 70122063 10000 | − | 1563 20 | x | + | 1563 20 | × | 7841 100 | = | - | 52949 2500 | − | 1563 20 | × | 1563 20 | + | 1563 20 | × | 7841 100 |
8943 100 | x | − | 70122063 10000 | − | 1563 20 | x | + | 12255483 2000 | = | - | 52949 2500 | − | 2442969 400 | + | 12255483 2000 |