题目内容
|
| x-
|
(1)
x+
x=1,
x×
=1×
,
x=
,
(2)
x+
=
,
x+
-
=
-
,
x=
,
x×5=
×5,
x=
,
(3)x-
x=30,
x=30,
x×
=30×
,
x=36.
| 4 |
| 5 |
| 1 |
| 2 |
| 13 |
| 10 |
| 10 |
| 13 |
| 10 |
| 13 |
x=
| 10 |
| 13 |
(2)
| 1 |
| 5 |
| 1 |
| 4 |
| 7 |
| 8 |
| 1 |
| 5 |
| 1 |
| 4 |
| 1 |
| 4 |
| 7 |
| 8 |
| 1 |
| 4 |
| 1 |
| 5 |
| 5 |
| 8 |
| 1 |
| 5 |
| 5 |
| 8 |
x=
| 25 |
| 8 |
(3)x-
| 1 |
| 6 |
| 5 |
| 6 |
| 5 |
| 6 |
| 6 |
| 5 |
| 6 |
| 5 |
x=36.
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