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