( | X | − | 1000 | × | 8 100 | ) | ( | 1 | − | 25 100 | ) | ÷ | ( | 4500 | + | 1000 | ) | = | ( | X | − | 1000 | × | 8 100 | ) | ( | 1 | − | 25 100 | ) | ÷ | ( | 4500 | + | 1000 | ) |
方程两边同时乘以: | ( | 4500 | + | 1000 | ) | , | ( | 4500 | + | 1000 | ) |
( | X | − | 1000 | × | 8 100 | ) | ( | 1 | − | 25 100 | ) | ( | 4500 | + | 1000 | ) | = | ( | X | − | 1000 | × | 8 100 | ) | ( | 1 | − | 25 100 | ) | ( | 4500 | + | 1000 | ) |
X | ( | 1 | − | 25 100 | ) | ( | 4500 | + | 1000 | ) | − | 1000 | × | 8 100 | ( | 1 | − | 25 100 | ) | ( | 4500 | + | 1000 | ) | = | ( | X | − | 1000 | × | 8 100 | ) | ( | 1 | − | 25 100 | ) | ( | 4500 | + | 1000 | ) |
X | ( | 1 | − | 25 100 | ) | ( | 4500 | + | 1000 | ) | − | 1000 | × | 8 100 | ( | 1 | − | 25 100 | ) | ( | 4500 | + | 1000 | ) | = | X | ( | 1 | − | 25 100 | ) | ( | 4500 | + | 1000 | ) | − | 1000 | × | 8 100 | ( | 1 | − | 25 100 | ) | ( | 4500 | + | 1000 | ) |
X | ( | 1 | − | 25 100 | ) | ( | 4500 | + | 1000 | ) | − | 80 | ( | 1 | − | 25 100 | ) | ( | 4500 | + | 1000 | ) | = | X | ( | 1 | − | 25 100 | ) | ( | 4500 | + | 1000 | ) | − | 80 | ( | 1 | − | 25 100 | ) | ( | 4500 | + | 1000 | ) |
X | × | 1 | ( | 4500 | + | 1000 | ) | − | X | × | 25 100 | ( | 4500 | + | 1000 | ) | − | 80 | ( | 1 | − | 25 100 | ) | ( | 4500 | + | 1000 | ) | = | X | ( | 1 | − | 25 100 | ) | ( | 4500 | + | 1000 | ) | − | 80 | ( | 1 | − | 25 100 | ) | ( | 4500 | + | 1000 | ) |
X | × | 1 | ( | 4500 | + | 1000 | ) | − | X | × | 25 100 | ( | 4500 | + | 1000 | ) | − | 80 | ( | 1 | − | 25 100 | ) | ( | 4500 | + | 1000 | ) | = | X | × | 1 | ( | 4500 | + | 1000 | ) | − | X | × | 25 100 | ( | 4500 | + | 1000 | ) | − | 80 | ( | 1 | − | 25 100 | ) | ( | 4500 | + | 1000 | ) |
X | × | 1 | × | 4500 | + | X | × | 1 | × | 1000 | − | X | × | 25 100 | ( | 4500 | + | 1000 | ) | − | 80 | ( | 1 | − | 25 100 | ) | ( | 4500 | + | 1000 | ) | = | X | × | 1 | ( | 4500 | + | 1000 | ) | − | X | × | 25 100 | ( | 4500 | + | 1000 | ) | − | 80 | ( | 1 | − | 25 100 | ) | ( | 4500 | + | 1000 | ) |
X | × | 1 | × | 4500 | + | X | × | 1 | × | 1000 | − | X | × | 25 100 | ( | 4500 | + | 1000 | ) | − | 80 | ( | 1 | − | 25 100 | ) | ( | 4500 | + | 1000 | ) | = | X | × | 1 | × | 4500 | + | X | × | 1 | × | 1000 | − | X | × | 25 100 | ( | 4500 | + | 1000 | ) | − | 80 | ( | 1 | − | 25 100 | ) | ( | 4500 | + | 1000 | ) |
X | × | 4500 | + | X | × | 1000 | − | X | × | 25 100 | ( | 4500 | + | 1000 | ) | − | 80 | ( | 1 | − | 25 100 | ) | ( | 4500 | + | 1000 | ) | = | X | × | 4500 | + | X | × | 1000 | − | X | × | 25 100 | ( | 4500 | + | 1000 | ) | − | 80 | ( | 1 | − | 25 100 | ) | ( | 4500 | + | 1000 | ) |
5500 | X | − | X | × | 25 100 | ( | 4500 | + | 1000 | ) | − | 80 | ( | 1 | − | 25 100 | ) | ( | 4500 | + | 1000 | ) | = | 5500 | X | − | X | × | 25 100 | ( | 4500 | + | 1000 | ) | − | 80 | ( | 1 | − | 25 100 | ) | ( | 4500 | + | 1000 | ) |
5500 | X | − | X | × | 25 100 | × | 4500 | − | X | × | 25 100 | × | 1000 | − | 80 | ( | 1 | − | 25 100 | ) | ( | 4500 | + | 1000 | ) | = | 5500 | X | − | X | × | 25 100 | ( | 4500 | + | 1000 | ) | − | 80 | ( | 1 | − | 25 100 | ) | ( | 4500 | + | 1000 | ) |
5500 | X | − | X | × | 25 100 | × | 4500 | − | X | × | 25 100 | × | 1000 | − | 80 | ( | 1 | − | 25 100 | ) | ( | 4500 | + | 1000 | ) | = | 5500 | X | − | X | × | 25 100 | × | 4500 | − | X | × | 25 100 | × | 1000 | − | 80 | ( | 1 | − | 25 100 | ) | ( | 4500 | + | 1000 | ) |
5500 | X | − | X | × | 1125 | − | X | × | 250 | − | 80 | ( | 1 | − | 25 100 | ) | ( | 4500 | + | 1000 | ) | = | 5500 | X | − | X | × | 1125 | − | X | × | 250 | − | 80 | ( | 1 | − | 25 100 | ) | ( | 4500 | + | 1000 | ) |
4125 | X | − | 80 | ( | 1 | − | 25 100 | ) | ( | 4500 | + | 1000 | ) | = | 4125 | X | − | 80 | ( | 1 | − | 25 100 | ) | ( | 4500 | + | 1000 | ) |
4125 | X | − | 80 | × | 1 | ( | 4500 | + | 1000 | ) | + | 80 | × | 25 100 | ( | 4500 | + | 1000 | ) | = | 4125 | X | − | 80 | ( | 1 | − | 25 100 | ) | ( | 4500 | + | 1000 | ) |
4125 | X | − | 80 | × | 1 | ( | 4500 | + | 1000 | ) | + | 80 | × | 25 100 | ( | 4500 | + | 1000 | ) | = | 4125 | X | − | 80 | × | 1 | ( | 4500 | + | 1000 | ) | + | 80 | × | 25 100 | ( | 4500 | + | 1000 | ) |
4125 | X | − | 80 | ( | 4500 | + | 1000 | ) | + | 20 | ( | 4500 | + | 1000 | ) | = | 4125 | X | − | 80 | ( | 4500 | + | 1000 | ) | + | 20 | ( | 4500 | + | 1000 | ) |
4125 | X | − | 80 | × | 4500 | − | 80 | × | 1000 | + | 20 | ( | 4500 | + | 1000 | ) | = | 4125 | X | − | 80 | ( | 4500 | + | 1000 | ) | + | 20 | ( | 4500 | + | 1000 | ) |
4125 | X | − | 80 | × | 4500 | − | 80 | × | 1000 | + | 20 | ( | 4500 | + | 1000 | ) | = | 4125 | X | − | 80 | × | 4500 | − | 80 | × | 1000 | + | 20 | ( | 4500 | + | 1000 | ) |
4125 | X | − | 360000 | − | 80000 | + | 20 | ( | 4500 | + | 1000 | ) | = | 4125 | X | − | 360000 | − | 80000 | + | 20 | ( | 4500 | + | 1000 | ) |
4125 | X | − | 440000 | + | 20 | ( | 4500 | + | 1000 | ) | = | 4125 | X | − | 440000 | + | 20 | ( | 4500 | + | 1000 | ) |
4125 | X | − | 440000 | + | 20 | × | 4500 | + | 20 | × | 1000 | = | 4125 | X | − | 440000 | + | 20 | ( | 4500 | + | 1000 | ) |
4125 | X | − | 440000 | + | 20 | × | 4500 | + | 20 | × | 1000 | = | 4125 | X | − | 440000 | + | 20 | × | 4500 | + | 20 | × | 1000 |
4125 | X | − | 440000 | + | 90000 | + | 20000 | = | 4125 | X | − | 440000 | + | 90000 | + | 20000 |