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3x:64=78:4x:35=25:74x−65=3x−142x+1=13xx:6=3:335320:180%=6.5xx:8=35:115(3x-5):(x-13)=3:249:x=0.5:912:x=21.510:x=412:4519:5710=60%:x34:x=516:14x24

题目详情
3x:64=
7
8
:4
x:35=
2
5
:7
4x−6
5
3x−1
4
2
x+1
1
3x
x:6=3:3
3
5
3
20
:180%=
6.5
x
x:8=
3
5
:1
1
5
(3x-5):(x-
1
3
)=3:2
4
9
:x=0.5:9
12:x=
2
1.5
10:x=4
1
2
4
5
19:5
7
10
=60%:x
3
4
:x=
5
16
1
4
x
24
0.5
3
(
4
7
x):
2
3
=4:7.
▼优质解答
答案和解析
(1)3x:64=
7
8
:4,
           12x=64×
7
8

       12x÷12=56÷12,
             x=4
3
4


(2)x:35=
2
5
:7,
        7x=35×
2
5

     7x÷7=14÷7,
         x=2;

(3)
4x−6
5
=
3x−1
4

    16x-24=15x-5,
 16x-24+24=15x-5+24,
   16x-15x=15x+19-15x,
         x=19;

(4)
2
x+1
=
1
3x

       6x=x+1,
     6x-x=x+1-x,
    5x÷5=1÷5,
        x=
1
5


(5)x:6=3:3
3
5

     3
3
5
x=6×3,
3
3
5
x÷3
3
5
=18÷3
3
5

       x=5;

(6)
3
20
:180%=
6.5
x

        
3
20
x=180%×6.5,
     
3
20
x÷
3
20
=11.7÷
3
20

           x=78;

(7)x:8=
3
5
:1
1
5

     1
1
5
x=8×
3
5

1
1
5
x÷1
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