( | X | − | 7 100 | ) | ÷ | ( | 8 100 | − | 7 100 | ) | = | ( | 13043 5000 | − | 26243 10000 | ) | ÷ | ( | 25771 10000 | − | 26243 10000 | ) |
方程两边同时乘以: | ( | 8 100 | − | 7 100 | ) | , | ( | 25771 10000 | − | 26243 10000 | ) |
( | X | − | 7 100 | ) | ( | 25771 10000 | − | 26243 10000 | ) | = | ( | 13043 5000 | − | 26243 10000 | ) | ( | 8 100 | − | 7 100 | ) |
X | ( | 25771 10000 | − | 26243 10000 | ) | − | 7 100 | ( | 25771 10000 | − | 26243 10000 | ) | = | ( | 13043 5000 | − | 26243 10000 | ) | ( | 8 100 | − | 7 100 | ) |
X | ( | 25771 10000 | − | 26243 10000 | ) | − | 7 100 | ( | 25771 10000 | − | 26243 10000 | ) | = | 13043 5000 | ( | 8 100 | − | 7 100 | ) | − | 26243 10000 | ( | 8 100 | − | 7 100 | ) |
X | × | 25771 10000 | − | X | × | 26243 10000 | − | 7 100 | ( | 25771 10000 | − | 26243 10000 | ) | = | 13043 5000 | ( | 8 100 | − | 7 100 | ) | − | 26243 10000 | ( | 8 100 | − | 7 100 | ) |
X | × | 25771 10000 | − | X | × | 26243 10000 | − | 7 100 | ( | 25771 10000 | − | 26243 10000 | ) | = | 13043 5000 | × | 8 100 | − | 13043 5000 | × | 7 100 | − | 26243 10000 | ( | 8 100 | − | 7 100 | ) |
X | × | 25771 10000 | − | X | × | 26243 10000 | − | 7 100 | ( | 25771 10000 | − | 26243 10000 | ) | = | 13043 62500 | − | 91301 500000 | − | 26243 10000 | ( | 8 100 | − | 7 100 | ) |