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解方程75%x÷98=512x−14x=12x:1.25=8.

题目详情
解方程
75%x÷98=
5
12

x−
1
4
x=12

x:1.25=8.
解方程
75%x÷98=
5
12

x−
1
4
x=12

x:1.25=8.
解方程
75%x÷98=
5
12

x−
1
4
x=12

x:1.25=8.解方程
75%x÷98=
5
12

5
12
5
12
551212
x−
1
4
x=12

x−
1
4
x=12
1
4
1144
x:1.25=8.
▼优质解答
答案和解析
(1)75%x÷98=
5
12

     
3
4
x÷98×98=
5
12
×98,
             
3
4
x=
245
6

          
3
4
3
4
=
245
6
÷
3
4

                x=54;

(2)x-
1
4
x=12,
 x(1-
1
4
)=12,
       
3
4
x=12,
  
3
4
3
4
=12÷
3
4

         x=16;

(3)x:1.25=8,
x÷1.25×1.25=8×1.25,
           x=10.
5
12
555121212,
     
3
4
x÷98×98=
5
12
×98,
             
3
4
x=
245
6

          
3
4
3
4
=
245
6
÷
3
4

                x=54;

(2)x-
1
4
x=12,
 x(1-
1
4
)=12,
       
3
4
x=12,
  
3
4
3
4
=12÷
3
4

         x=16;

(3)x:1.25=8,
x÷1.25×1.25=8×1.25,
           x=10.
3
4
333444x÷98×98=
5
12
×98,
             
3
4
x=
245
6

          
3
4
3
4
=
245
6
÷
3
4

                x=54;

(2)x-
1
4
x=12,
 x(1-
1
4
)=12,
       
3
4
x=12,
  
3
4
3
4
=12÷
3
4

         x=16;

(3)x:1.25=8,
x÷1.25×1.25=8×1.25,
           x=10.
5
12
555121212×98,
             
3
4
x=
245
6

          
3
4
3
4
=
245
6
÷
3
4

                x=54;

(2)x-
1
4
x=12,
 x(1-
1
4
)=12,
       
3
4
x=12,
  
3
4
3
4
=12÷
3
4

         x=16;

(3)x:1.25=8,
x÷1.25×1.25=8×1.25,
           x=10.
3
4
333444x=
245
6

          
3
4
3
4
=
245
6
÷
3
4

                x=54;

(2)x-
1
4
x=12,
 x(1-
1
4
)=12,
       
3
4
x=12,
  
3
4
3
4
=12÷
3
4

         x=16;

(3)x:1.25=8,
x÷1.25×1.25=8×1.25,
           x=10.
245
6
245245245666,
          
3
4
3
4
=
245
6
÷
3
4

                x=54;

(2)x-
1
4
x=12,
 x(1-
1
4
)=12,
       
3
4
x=12,
  
3
4
3
4
=12÷
3
4

         x=16;

(3)x:1.25=8,
x÷1.25×1.25=8×1.25,
           x=10.
3
4
333444x÷
3
4
=
245
6
÷
3
4

                x=54;

(2)x-
1
4
x=12,
 x(1-
1
4
)=12,
       
3
4
x=12,
  
3
4
3
4
=12÷
3
4

         x=16;

(3)x:1.25=8,
x÷1.25×1.25=8×1.25,
           x=10.
3
4
333444=
245
6
÷
3
4

                x=54;

(2)x-
1
4
x=12,
 x(1-
1
4
)=12,
       
3
4
x=12,
  
3
4
3
4
=12÷
3
4

         x=16;

(3)x:1.25=8,
x÷1.25×1.25=8×1.25,
           x=10.
245
6
245245245666÷
3
4

                x=54;

(2)x-
1
4
x=12,
 x(1-
1
4
)=12,
       
3
4
x=12,
  
3
4
3
4
=12÷
3
4

         x=16;

(3)x:1.25=8,
x÷1.25×1.25=8×1.25,
           x=10.
3
4
333444,
                x=54;

(2)x-
1
4
x=12,
 x(1-
1
4
)=12,
       
3
4
x=12,
  
3
4
3
4
=12÷
3
4

         x=16;

(3)x:1.25=8,
x÷1.25×1.25=8×1.25,
           x=10.
1
4
111444x=12,
 x(1-
1
4
)=12,
       
3
4
x=12,
  
3
4
3
4
=12÷
3
4

         x=16;

(3)x:1.25=8,
x÷1.25×1.25=8×1.25,
           x=10.
1
4
111444)=12,
       
3
4
x=12,
  
3
4
3
4
=12÷
3
4

         x=16;

(3)x:1.25=8,
x÷1.25×1.25=8×1.25,
           x=10.
3
4
333444x=12,
  
3
4
3
4
=12÷
3
4

         x=16;

(3)x:1.25=8,
x÷1.25×1.25=8×1.25,
           x=10.
3
4
333444x÷
3
4
=12÷
3
4

         x=16;

(3)x:1.25=8,
x÷1.25×1.25=8×1.25,
           x=10.
3
4
333444=12÷
3
4

         x=16;

(3)x:1.25=8,
x÷1.25×1.25=8×1.25,
           x=10.
3
4
333444,
         x=16;

(3)x:1.25=8,
x÷1.25×1.25=8×1.25,
           x=10.