问题 解答题
x-
1
3
=
1
2
5
6
-x=
3
4
2x-
3
10
=
17
10
x+(
3
8
-
1
4
)=
5
8
答案

(1)x-

1
3
=
1
2

x-

1
3
+
1
3
=
1
2
+
1
3

x=

5
6

(2)

5
6
-x=
3
4

5
6
-x+x=
3
4
+x,

x+

3
4
=
5
6

x+

3
4
-
3
4
=
5
6
-
3
4

x=

1
12

(3)2x-

3
10
=
17
10

2x-

3
10
+
3
10
=
17
10
+
3
10

2x=2,

2x÷2=2÷2,

x=1;

(4)x+(

3
8
-
1
4
)=
5
8

x+

1
8
=
5
8

x+

1
8
-
1
8
=
5
8
-
1
8

x=

1
2

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