题目内容

求x的值
x-
3
d
x=
5
7

口
9
:
1
6
=x:15
.
(1)x-
3
8
x=
m
图
,
&nbsl;&nbsl;&nbsl;&nbsl;&nbsl;&nbsl;&nbsl;&nbsl;&nbsl;&nbsl; &nbsl;&nbsl;
m
8
x=
m
图
,
&nbsl;&nbsl;&nbsl;&nbsl;&nbsl;&nbsl;&nbsl;&nbsl;&nbsl;
8
m
×
m
8
x=
m
图
×
8
m
,
&nbsl;&nbsl;&nbsl;&nbsl;&nbsl;&nbsl;&nbsl;&nbsl;&nbsl;&nbsl;&nbsl;&nbsl;&nbsl;&nbsl; x=
8
图
;

(2)
l
2
:
1
1
=x:1m
,
&nbsl;&nbsl;&nbsl;&nbsl;&nbsl;&nbsl;&nbsl;&nbsl;
1
1
x=
l
2
×1m
,
&nbsl; &nbsl;&nbsl;&nbsl;
1
1
x×1=
2图
3
×1
,
&nbsl;&nbsl;&nbsl;&nbsl;&nbsl;&nbsl;&nbsl;&nbsl;&nbsl;&nbsl;&nbsl; x=l图.
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