225 4 | ÷ | ( | 15 | + | 2 | x | ) | = | 3 5 |
方程两边同时乘以: | ( | 15 | + | 2 | x | ) |
225 4 | = | 3 5 | ( | 15 | + | 2 | x | ) |
225 4 | = | 3 5 | × | 15 | + | 3 5 | × | 2 | x |
225 4 | = | 9 | + | 6 5 | x |
- | 6 5 | x | = | 9 | − | 225 4 |
- | 6 5 | x | = | - | 189 4 |
189 4 | = | 6 5 | x |
6 5 | x | = | 189 4 |
x | = | 189 4 | ÷ | 6 5 |
= | 189 4 | × | 5 6 |
= | 63 4 | × | 5 2 |
x | = | 315 8 |
x | = | 39.375 |