题目内容
解方程.
|
| (1-
|
(1)
x÷
=18,
x÷
×
=18×
,
x=3,
x×
=3×
,
x=4;
(2)
x+
x=
,
(
+
)x=
,
x=
,
x×
=
×
,
x=
;
(3)(1-
)x=
,
x=
,
x×
=
×
,
x=
.
| 3 |
| 4 |
| 1 |
| 6 |
| 3 |
| 4 |
| 1 |
| 6 |
| 1 |
| 6 |
| 1 |
| 6 |
| 3 |
| 4 |
| 3 |
| 4 |
| 4 |
| 3 |
| 4 |
| 3 |
x=4;
(2)
| 1 |
| 8 |
| 3 |
| 4 |
| 35 |
| 64 |
(
| 1 |
| 8 |
| 3 |
| 4 |
| 35 |
| 64 |
| 7 |
| 8 |
| 35 |
| 64 |
| 7 |
| 8 |
| 8 |
| 7 |
| 35 |
| 64 |
| 8 |
| 7 |
x=
| 5 |
| 8 |
(3)(1-
| 5 |
| 8 |
| 15 |
| 14 |
| 3 |
| 8 |
| 15 |
| 14 |
| 3 |
| 8 |
| 8 |
| 3 |
| 15 |
| 14 |
| 8 |
| 3 |
x=
| 20 |
| 7 |
练习册系列答案
相关题目