题目内容
| 求未知数x. (1)
| (2)
|
(1)
x+
x=
,
x=
,
x×
=
×
,
x=
;
(2)
:x=
:20,
x=
×20,
x×2=5×2,
x=10.
| 1 |
| 3 |
| 1 |
| 2 |
| 5 |
| 8 |
| 5 |
| 6 |
| 5 |
| 8 |
| 5 |
| 6 |
| 6 |
| 5 |
| 5 |
| 8 |
| 6 |
| 5 |
x=
| 3 |
| 4 |
(2)
| 1 |
| 4 |
| 1 |
| 2 |
| 1 |
| 2 |
| 1 |
| 4 |
| 1 |
| 2 |
x=10.
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