问题 解答题
解方程.
x-
3
8
=
5
12

x+
1
5
=
5
6

1
4
+x+
6
7
=
5
4
答案

(1)x-

3
8
=
5
12

x-

3
8
+
3
8
=
5
12
+
3
8

x=

19
24

(2)x+

1
5
=
5
6

x+

1
5
-
1
5
=
5
6
-
1
5

x=

19
30

(3)

1
4
+x+
6
7
=
5
4

1
4
+x+
6
7
-
1
4
=
5
4
-
1
4

x+

6
7
=1,

x+

6
7
-
6
7
=1-
6
7

x=

1
7

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