题目内容
| 求未知数x ①X:
| ②X-0.25=
|
(1)X:
=4:0.5,
0.5X=
×4,
0.5X÷0.5=3÷0.5,
X=6;
(2)X-0.25=
,
X-0.25+0.25=
+0.25,
X=0.5.
| 3 |
| 4 |
0.5X=
| 3 |
| 4 |
0.5X÷0.5=3÷0.5,
X=6;
(2)X-0.25=
| 1 |
| 4 |
X-0.25+0.25=
| 1 |
| 4 |
X=0.5.
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| 求未知数x ①X:
| ②X-0.25=
|
| 3 |
| 4 |
| 3 |
| 4 |
| 1 |
| 4 |
| 1 |
| 4 |