题干
解方程或比例．
：36%=
x
x+
=6
| x |
| 5 |
| 3 |
| 5 |
| 4 |
| 5 |
9.5﹣3x=4.5．
| x |
| 5 |
| 3 |
| 5 |
| 4 |
| 5 |
