题目内容
求未知数χ.
①
x+
=2.4
②
:x=3:24.
①
| 24 |
| 25 |
| 2 |
| 5 |
②
| 3 |
| 8 |
①
x+
=2.4,
x+
-
=2.4-
,
x=2,
x÷
=2÷
,
x=2
;
②
:x=3:24,
3x=
×24,
3x=9,
x=3.
| 24 |
| 25 |
| 2 |
| 5 |
| 24 |
| 25 |
| 2 |
| 5 |
| 2 |
| 5 |
| 2 |
| 5 |
| 24 |
| 25 |
| 24 |
| 25 |
| 24 |
| 25 |
| 24 |
| 25 |
x=2
| 1 |
| 12 |
②
| 3 |
| 8 |
3x=
| 3 |
| 8 |
3x=9,
x=3.
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