问题 解答题
解方程.
3
4
1
6
=18

1
8
x+
3
4
x=
35
64

(1-
5
8
)x=
15
14
答案

(1)

3
4
1
6
=18,

3
4
1
6
×
1
6
=18×
1
6

3
4
x=3,

3
4
4
3
=3×
4
3

x=4;

(2)

1
8
x+
3
4
x=
35
64

1
8
+
3
4
)x=
35
64

7
8
x=
35
64

7
8
8
7
=
35
64
×
8
7

x=

5
8

(3)(1-

5
8
)x=
15
14

3
8
x=
15
14

3
8
8
3
=
15
14
×
8
3

x=

20
7

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