题目内容
解方程.
①
x÷
=12
②X-
X=
③X:
=2:
.
①
| 3 |
| 4 |
| 2 |
| 3 |
②X-
| 1 |
| 3 |
| 5 |
| 6 |
③X:
| 3 |
| 4 |
| 9 |
| 10 |
①
x÷
=12,
x×
=12,
x×
=12×
,
x=10
;
②X-
X=
,
x=
,
x×
=
×
,
x=
,
x=1
;
③x:
=2:
,
x=
×2,
x×
=
×
,
x=
,
x=1
.
| 3 |
| 4 |
| 2 |
| 3 |
| 3 |
| 4 |
| 3 |
| 2 |
| 9 |
| 8 |
| 8 |
| 9 |
| 8 |
| 9 |
x=10
| 2 |
| 3 |
②X-
| 1 |
| 3 |
| 5 |
| 6 |
| 2 |
| 3 |
| 5 |
| 6 |
| 2 |
| 3 |
| 3 |
| 2 |
| 5 |
| 6 |
| 3 |
| 2 |
x=
| 5 |
| 4 |
x=1
| 1 |
| 4 |
③x:
| 3 |
| 4 |
| 9 |
| 10 |
| 9 |
| 10 |
| 3 |
| 4 |
| 9 |
| 10 |
| 10 |
| 9 |
| 3 |
| 2 |
| 10 |
| 9 |
x=
| 5 |
| 3 |
x=1
| 2 |
| 3 |
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