题目内容
求未知数x.
|
|
(1)
x+
=
,
x+
-
=
-
,
x=
,
x×
=
×
,
x=
;
(2)
:
=
:x,
x=
×
,
x=
,
x×3=
×3,
x=
.
| 2 |
| 3 |
| 1 |
| 3 |
| 4 |
| 5 |
| 2 |
| 3 |
| 1 |
| 3 |
| 1 |
| 3 |
| 4 |
| 5 |
| 1 |
| 3 |
| 2 |
| 3 |
| 7 |
| 15 |
| 2 |
| 3 |
| 3 |
| 2 |
| 7 |
| 15 |
| 3 |
| 2 |
x=
| 7 |
| 10 |
(2)
| 1 |
| 3 |
| 3 |
| 8 |
| 4 |
| 9 |
| 1 |
| 3 |
| 3 |
| 8 |
| 4 |
| 9 |
| 1 |
| 3 |
| 1 |
| 6 |
| 1 |
| 3 |
| 1 |
| 6 |
x=
| 1 |
| 2 |
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