题目内容
求未知数x.
①6÷
-3.5x=6
②
:
=x:6.
①6÷
| 2 |
| 3 |
②
| 3 |
| 4 |
| 2 |
| 3 |
(1)6÷
-3.5x=6,
9-3.5x=6,
3.5x=9-6,
x=3÷3.5,
x=
;
(2)
:
=x:6,
x=6×
,
x=
,
x=
×
,
x=
.
| 2 |
| 3 |
9-3.5x=6,
3.5x=9-6,
x=3÷3.5,
x=
| 6 |
| 7 |
(2)
| 3 |
| 4 |
| 2 |
| 3 |
| 2 |
| 3 |
| 3 |
| 4 |
| 2 |
| 3 |
| 9 |
| 2 |
x=
| 9 |
| 2 |
| 3 |
| 2 |
x=
| 27 |
| 4 |
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