( | 46843 20 | + | x | ) | ÷ | ( | 3000 | + | x | ) | = | 90 100 |
方程两边同时乘以: | ( | 3000 | + | x | ) |
( | 46843 20 | + | x | ) | = | 90 100 | ( | 3000 | + | x | ) |
46843 20 | + | x | = | 90 100 | ( | 3000 | + | x | ) |
46843 20 | + | x | = | 90 100 | × | 3000 | + | 90 100 | x |
46843 20 | + | x | = | 2700 | + | 90 100 | x |
x | − | 90 100 | x | = | 2700 | − | 46843 20 |
1 10 | x | = | 2700 | − | 46843 20 |
1 10 | x | = | 7157 20 |
x | = | 7157 20 | ÷ | 1 10 |
= | 7157 20 | × | 10 |
= | 7157 2 | × | 1 |
x | = | 7157 2 |
x | = | 3578.5 |