题目内容

解方程.
(1)x÷
6
25
=
5
12
(2)
7
18
÷x=
14
27
(3)
1
4
x+
3
4
=
5
6
(4)
6
7
-3x=
3
14
(1)x÷
6
25
=
5
12

    x÷
6
25
×
6
25
=
5
12
×
6
25

             x=
1
10


(2)
7
18
÷x=
14
27

 
7
18
÷x×x=
14
27
×x,
    
14
27
×x=
7
18

 
14
27
×x×
27
14
=
7
18
×
27
14

          x=
3
4


(3)
1
4
x+
3
4
=
5
6

 
1
4
x+
3
4
-
3
4
=
5
6
-
3
4

      
1
4
x=
1
12

    
1
4
x×4=
1
12
×4,
         x=
1
3


(4)
6
7
-3x=
3
14

 
6
7
-3x+3x=
3
14
+3x,
   
3
14
+3x=
6
7

3
14
+3x-
3
14
=
6
7
-
3
14

       3x=
9
14

    3x÷3=
9
14
÷3,
        x=
3
14
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