题目内容

解方程.
2x-
1
3
=
5
6

x÷
4
9
=
63
75

1
3
x+
1
4
=
2
3
(1)2x-
1
3
=
5
6

      2x-
1
3
+
1
3
=
5
6
+
1
3

           2x=
7
6

        2x÷2=
7
6
÷2,
            x=
7
12


(2)x÷
4
9
=
63
75

  x÷
4
9
×
4
9
=
63
75
×
4
9

        x=
28
75


(3)
1
3
x+
1
4
=
2
3

    
1
3
x+
1
4
-
1
4
=
2
3
-
1
4

        
1
3
x=
5
12

      
1
3
1
3
=
5
12
÷
1
3

           x=
5
4
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