| 解方程 x-
| 4.5-
|
| 3 |
| 7 |
| 1 |
| 14 |
(1-
| 3 |
| 7 |
| 1 |
| 14 |
| 4 |
| 7 |
| 1 |
| 14 |
| 4 |
| 7 |
| 7 |
| 4 |
| 1 |
| 14 |
| 7 |
| 4 |
x=
| 1 |
| 8 |
(2)4.5-
| 4 |
| 5 |
4.5-0.8x=2.7,
4.5-0.8x+0.8x=2.7+0.8x,
2.7+0.8x=4.5,
2.7+0.8x-2.7=4.5-2.7,
0.8x=1.8,
0.8x÷0.8=1.8÷0.8,
x=2.25.
编辑:chaxungu时间:2026-04-27 13:38:29分类:小学数学题库
| 解方程 x-
| 4.5-
|
| 3 |
| 7 |
| 1 |
| 14 |
| 3 |
| 7 |
| 1 |
| 14 |
| 4 |
| 7 |
| 1 |
| 14 |
| 4 |
| 7 |
| 7 |
| 4 |
| 1 |
| 14 |
| 7 |
| 4 |
| 1 |
| 8 |
| 4 |
| 5 |