( | 7500 | + | x | − | 600 | − | 5000 | ) | ÷ | ( | 1 | − | 3 100 | ) | × | 3 100 | = | x |
方程两边同时乘以: | ( | 1 | − | 3 100 | ) |
( | 7500 | + | x | − | 600 | − | 5000 | ) | × | 3 100 | = | x | ( | 1 | − | 3 100 | ) |
7500 | × | 3 100 | + | x | × | 3 100 | − | 600 | × | 3 100 | − | 5000 | × | 3 100 | = | x | ( | 1 | − | 3 100 | ) |
7500 | × | 3 100 | + | x | × | 3 100 | − | 600 | × | 3 100 | − | 5000 | × | 3 100 | = | x | × | 1 | − | x | × | 3 100 |
225 | + | x | × | 3 100 | − | 18 | − | 150 | = | x | × | 1 | − | x | × | 3 100 |
57 | + | 3 100 | x | = | 97 100 | x |
3 100 | x | − | 97 100 | x | = | - | 57 |
- | 47 50 | x | = | - | 57 |
57 | = | 47 50 | x |
47 50 | x | = | 57 |
x | = | 57 | ÷ | 47 50 |
= | 57 | × | 50 47 |
x | = | 2850 47 |
x | = | 60.638298 |