问题 解答题
解方程.
(1)x÷
9
8
=
3
4

(2)
2
9
x=
16
27

(3)
5
18
x=
25
54
答案

(1)x÷

9
8
=
3
4

9
8
×
9
8
=
3
4
×
9
8

x=

27
32

(2)

2
9
x=
16
27

2
9
2
9
=
16
27
÷
2
9

x=

16
27
×
9
2

x=

8
3

(3)

5
18
x=
25
54

5
18
5
18
=
25
54
÷
5
18

x=

25
54
×
18
5

x=

5
3

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