题目内容

解方程.
5
6
=
4
5
5X-4.7X=
9
10
2
3
X+8=122
5
6
÷X=
15
16
5
12
=
4
5
11
13
×X=
12
13
(1)x÷
5
6
=
4
5

      x÷
5
6
×
5
6
=
4
5
×
5
6

           x=
2
3


(2)5x-4.7x=
9
10

        0.3x=
9
10

   0.3x÷0.3=
9
10
÷
0.3,
           x=3;

(3)
2
3
x+8=122,
  
2
3
x+8-8=122-8,
    
2
3
x÷
2
3
=114÷
2
3

        x=171;

(4)
5
6
÷x=
15
16

 
5
6
÷x×x=
15
16
×x,
  
5
6
÷
15
16
=
15
16
x÷
15
16

        x=
8
9


(5)x÷
5
12
=
4
5

 x÷
5
12
×
5
12
=
4
5
×
5
12

         x=
1
3


(6)
11
13
×x=
12
13

 
11
13
×x÷
11
13
=
12
13
÷
11
13

         x=1
1
11
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