题目内容
| 解方程 ①x+
| ②7x-
| ③x:
|
①x+
x=
,
(1+
)x=
,
x=
,
x×
=
×
,
x=
;
②7x-
=
,
7x-
+
=
+
,
7x=
,
7x÷7=
÷7,
x=
;
③x:
=24,
x=
×24,
x=18.
| 3 |
| 5 |
| 16 |
| 17 |
(1+
| 3 |
| 5 |
| 16 |
| 17 |
| 8 |
| 5 |
| 16 |
| 17 |
| 8 |
| 5 |
| 5 |
| 8 |
| 16 |
| 17 |
| 5 |
| 8 |
x=
| 10 |
| 17 |
②7x-
| 1 |
| 3 |
| 4 |
| 9 |
7x-
| 1 |
| 3 |
| 1 |
| 3 |
| 4 |
| 9 |
| 1 |
| 3 |
7x=
| 7 |
| 9 |
7x÷7=
| 7 |
| 9 |
x=
| 1 |
| 9 |
③x:
| 3 |
| 4 |
x=
| 3 |
| 4 |
x=18.
练习册系列答案
相关题目