题目内容
求未知数X.
①X:
=12:
②1
X-
X=
③
=
:
.
①X:
| 3 |
| 4 |
| 3 |
| 8 |
②1
| 3 |
| 4 |
| 1 |
| 4 |
| 3 |
| 8 |
③
| X |
| 0.1 |
| 1 |
| 4 |
| 1 |
| 12 |
①X:
=12:
,
x=12×
,
x×
=12×
×
,
x=24,
②1
X-
X=
,
x=
,
x×
=
×
,
x=
,
③
=
:
,
x=0.1×
,
x×12=0.1×
×12,
x=0.3.
| 3 |
| 4 |
| 3 |
| 8 |
| 3 |
| 8 |
| 3 |
| 4 |
| 3 |
| 8 |
| 8 |
| 3 |
| 3 |
| 4 |
| 8 |
| 3 |
x=24,
②1
| 3 |
| 4 |
| 1 |
| 4 |
| 3 |
| 8 |
| 3 |
| 2 |
| 3 |
| 8 |
| 3 |
| 2 |
| 2 |
| 3 |
| 3 |
| 8 |
| 2 |
| 3 |
x=
| 1 |
| 4 |
③
| X |
| 0.1 |
| 1 |
| 4 |
| 1 |
| 12 |
| 1 |
| 12 |
| 1 |
| 4 |
| 1 |
| 12 |
| 1 |
| 4 |
x=0.3.
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