问题 解答题
解方程.
1
3
+x=
5
6
x+
4
5
-
1
2
=
9
10
x-
3
5
=
1
6
答案

(1)

1
3
+x=
5
6

1
3
+x-
1
3
=
5
6
-
1
3

x=

1
2

(2)x+

4
5
-
1
2
=
9
10

x+

8
10
-
5
10
=
9
10

x+

3
10
=
9
10

x+

3
10
-
3
10
=
9
10
-
3
10

x=

3
5

(3)x-

3
5
=
1
6

x-

3
5
+
3
5
=
1
6
+
3
5

x=

23
30

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