问题 解答题
解方程
6-x=
2
3
2x+
1
6
=
7
6
x-(
3
14
+
4
7
)=
1
2
答案

(1)6-x=

2
3

6-x+x=

2
3
+x

2
3
+x-
2
3
=6-
2
3

x=5

1
3

(2)2x+

1
6
=
7
6

2x+

1
6
-
1
6
=
7
6
-
1
6

2x÷2=1÷2

x=

1
2

(3)x-(

3
14
+
4
7
)=
1
2

x-

11
14
=
1
2

x-

11
14
+
11
14
=
1
2
+
11
14

x=

9
7

填空题
单项选择题 A1/A2型题