x | ÷ | ( | 1 10 | − | x | ) | = | 28 25 | × | 10000000 | ( | 1 2 | − | 2 | x | ) | ( | 1 2 | − | 2 | x | ) |
方程两边同时乘以: | ( | 1 10 | − | x | ) |
x | = | 28 25 | × | 10000000 | ( | 1 2 | − | 2 | x | ) | ( | 1 2 | − | 2 | x | ) | ( | 1 10 | − | x | ) |
x | = | 28 25 | × | 10000000 | × | 1 2 | ( | 1 2 | − | 2 | x | ) | ( | 1 10 | − | x | ) | − | 28 25 | × | 10000000 | × | 2 | x | ( | 1 2 | − | 2 | x | ) | ( | 1 10 | − | x | ) |
x | = | 5600000 | ( | 1 2 | − | 2 | x | ) | ( | 1 10 | − | x | ) | − | 22400000 | x | ( | 1 2 | − | 2 | x | ) | ( | 1 10 | − | x | ) |
x | = | 5600000 | × | 1 2 | ( | 1 10 | − | x | ) | − | 5600000 | × | 2 | x | ( | 1 10 | − | x | ) | − | 22400000 | x | ( | 1 2 | − | 2 | x | ) | ( | 1 10 | − | x | ) |
x | = | 2800000 | ( | 1 10 | − | x | ) | − | 11200000 | x | ( | 1 10 | − | x | ) | − | 22400000 | x | ( | 1 2 | − | 2 | x | ) | ( | 1 10 | − | x | ) |
x | = | 2800000 | × | 1 10 | − | 2800000 | x | − | 11200000 | x | ( | 1 10 | − | x | ) | − | 22400000 | x | ( | 1 2 | − | 2 | x | ) | ( | 1 10 | − | x | ) |
x | = | 280000 | − | 2800000 | x | − | 11200000 | x | ( | 1 10 | − | x | ) | − | 22400000 | x | ( | 1 2 | − | 2 | x | ) | ( | 1 10 | − | x | ) |
x | = | 280000 | − | 2800000 | x | − | 11200000 | x | × | 1 10 | + | 11200000 | x | x | − | 22400000 | x | ( | 1 2 | − | 2 | x | ) |
x | = | 280000 | − | 2800000 | x | − | 1120000 | x | + | 11200000 | x | x | − | 22400000 | x | ( | 1 2 | − | 2 | x | ) | ( | 1 10 | − | x | ) |
x | = | 280000 | − | 3920000 | x | + | 11200000 | x | x | − | 22400000 | x | ( | 1 2 | − | 2 | x | ) | ( | 1 10 | − | x | ) |
x | = | 280000 | − | 3920000 | x | + | 11200000 | x | x | − | 22400000 | x | × | 1 2 | ( | 1 10 | − | x | ) | + | 22400000 | x |
x | = | 280000 | − | 3920000 | x | + | 11200000 | x | x | − | 11200000 | x | ( | 1 10 | − | x | ) | + | 44800000 | x | x |
x | = | 280000 | − | 3920000 | x | + | 11200000 | x | x | − | 11200000 | x | × | 1 10 | + | 11200000 | x | x |
x | = | 280000 | − | 3920000 | x | + | 11200000 | x | x | − | 1120000 | x | + | 11200000 | x | x | + | 44800000 |
x | = | 280000 | − | 5040000 | x | + | 11200000 | x | x | + | 11200000 | x | x | + | 44800000 | x | x |
x | = | 280000 | − | 5040000 | x | + | 11200000 | x | x | + | 11200000 | x | x | + | 44800000 | x | x |
x | = | 280000 | − | 5040000 | x | + | 11200000 | x | x | + | 11200000 | x | x | + | 4480000 | x | x |