题目内容
求未知数x
(1)
:
=x:9
(2)
x-5=1.5.
(1)
| 2 |
| 3 |
| 5 |
| :6 |
(2)
| 3 |
| 4 |
(1)
:
=x:9,
x=9×
,
x×
=6×
,
x=
;
(2)
x-5=1.5,
x-5+5=1.5+5,
x×
=6.5×
,
x=6.5×
,
x=
.
| 2 |
| 3 |
| 5 |
| 6 |
| 5 |
| 6 |
| 2 |
| 3 |
| 5 |
| 6 |
| 6 |
| 5 |
| 6 |
| 5 |
x=
| 36 |
| 5 |
(2)
| 3 |
| 4 |
| 3 |
| 4 |
| 3 |
| 4 |
| 4 |
| 3 |
| 4 |
| 3 |
x=6.5×
| 4 |
| 3 |
x=
| 26 |
| 3 |
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