题目内容
解方程
| x+
|
(1)
x=14,
x×
=14×
,
x=16;
(2)x+
x=
,
(1+
)x=
,
x=
,
x×
=
×
,
x=
.
| 7 |
| 8 |
| 7 |
| 8 |
| 8 |
| 7 |
| 8 |
| 7 |
x=16;
(2)x+
| 4 |
| 9 |
| 26 |
| 7 |
(1+
| 4 |
| 9 |
| 26 |
| 7 |
| 13 |
| 9 |
| 26 |
| 7 |
| 13 |
| 9 |
| 9 |
| 13 |
| 26 |
| 7 |
| 9 |
| 13 |
x=
| 18 |
| 7 |
练习册系列答案
相关题目