(1)x÷4=56,
x÷4×4=56×4,
x=224;
(2)
2
3 x-
1
2 =
1
3 ,
2
3 x-
1
2 +
1
2 =
1
3 +
1
2 ,
2
3 x=
5
6 ,
2
3 x
2
3 =
5
6 ÷
2
3 ,
x=
5
4 ;
(3)
1
4 :x=5:0.4,
5x=
1
4 ×0.4,
5x=0.1,
5x÷5=0.1÷5,
x=0.02.
(1)x÷4=56,
x÷4×4=56×4,
x=224;
(2)
2
3 x-
1
2 =
1
3 ,
2
3 x-
1
2 +
1
2 =
1
3 +
1
2 ,
2
3 x=
5
6 ,
2
3 x
2
3 =
5
6 ÷
2
3 ,
x=
5
4 ;
(3)
1
4 :x=5:0.4,
5x=
1
4 ×0.4,
5x=0.1,
5x÷5=0.1÷5,
x=0.02.