问题 解答题
我会解方程.
3
5
x+
1
5
x=36
3
8
=
1
12
5
8
-x=
5
16
37.5%-
3
16
x=
3
8
x×(
5
6
+
5
8
)=
5
8
3
9
x=
5
6
答案

(1)

3
5
x+
1
5
x=36

4
5
x=36

4
5
x÷
4
5
=36÷
4
5

x=45;

(2)x÷

3
8
=
1
12

3
8
×
3
8
=
1
12
×
3
8

x=

1
32

(3)

5
8
-x=
5
16

5
8
-x+x=
5
16
+x

5
8
-
5
16
=
5
16
+x-
5
16

x=

5
16

(4)37.5%-

3
16
x=
3
8

37.5%-

3
16
x+
3
16
x=
3
8
+
3
16
x

37.5%-

3
8
=
3
8
+
3
16
x-
3
8

0÷

3
16
=
3
16
x÷
3
16

x=0;

(5)x×(

5
6
+
5
8
)=
5
8

35
24
=
5
8

35
24
÷
35
24
=
5
8
÷
35
24

x=

3
7

(6)

3
9
x=
5
6

3
9
x÷
3
9
=
5
6
÷
3
9

x=2

1
2

单项选择题