解方程:x-14x=24 4x+12x=9 &nb...

解方程:x-14x=24 4x+12x=9 59+2x=23 58x-35=25.
2025-06-21 16:02:49
推荐回答(1个)
回答1:

(1)x-

1
4
x=24          
         
3
4
x=24
      
3
4
4
3
=24×
4
3

           x=32;

(2)4x+
1
2
x=9
      4.5x=9
 4.5x÷4.5=9÷4.5
         x=2;

(3)
5
9
+2x=
2
3
 
 
5
9
+2x-
5
9
=
2
3
-
5
9
 
       2x=
1
9

    2x÷2=
1
9
÷2
        x=
1
18


(4)
5
8
x-
3
5
=
2
5

 
5
8
x-
3
5
+
3
5
=
2
5
+
3
5

      
5
8
x=1
  
5
8
8
5
=1×
8
5

        x=
8
5