问题 解答题
37%x-15%=55
4
5
x+
1
4
=
1
2
答案

(1)37%x-15%=55,

37%x-15%+15%=55+15%,

37%x=55.15,

37%x÷37%=55.15÷37%,

x=

5515
37

(2)

4
5
x+
1
4
=
1
2

4
5
x+
1
4
-
1
4
=
1
2
-
1
4

4
5
x=
1
4

4
5
4
5
=
1
4
÷
4
5

x=

5
16

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