题目内容
解方程
(1)
| (2)Ⅹ+
| (3)Ⅹ÷
|
(1)
x=
,
x×
=
×
,
x=
;
(2)Ⅹ+
Ⅹ=6,
(1+
)Ⅹ=6,
Ⅹ=6,
Ⅹ×
=6×
,
X=5;
(3)Ⅹ÷
=
,
Ⅹ÷
×
=
×
,
X=
.
| 3 |
| 7 |
| 9 |
| 14 |
| 3 |
| 7 |
| 7 |
| 3 |
| 9 |
| 14 |
| 7 |
| 3 |
x=
| 3 |
| 2 |
(2)Ⅹ+
| 1 |
| 5 |
(1+
| 1 |
| 5 |
| 6 |
| 5 |
| 6 |
| 5 |
| 5 |
| 6 |
| 5 |
| 6 |
X=5;
(3)Ⅹ÷
| 2 |
| 3 |
| 3 |
| 4 |
Ⅹ÷
| 2 |
| 3 |
| 2 |
| 3 |
| 3 |
| 4 |
| 2 |
| 3 |
X=
| 1 |
| 2 |
练习册系列答案
相关题目