题目内容
求未知数.
X+2×
| X+
|
(1)x+2×
=8,
x+
=8,
x+
-
=8-
,
x=6
;
(2)x+
x=18,
x=18,
x÷
=18÷
,
x=15.
| 3 |
| 4 |
x+
| 3 |
| 2 |
x+
| 3 |
| 2 |
| 3 |
| 2 |
| 3 |
| 2 |
x=6
| 1 |
| 2 |
(2)x+
| 1 |
| 5 |
| 6 |
| 5 |
| 6 |
| 5 |
| 6 |
| 5 |
| 6 |
| 5 |
x=15.
练习册系列答案
相关题目