问题 解答题
解方程或比例.

1+0.6x=9.5
x-0.25=
1
2
3
4
x+
1
6
x=66
36
x
=
54
3
1.25:0.25=x:2.4
3
4
5
6
=
1
4
:x.
答案

(1)1+0.6x=9.5,

1+0.6x-1=9.5-1,

0.6x÷0.6=8.5÷0.6,

x=14

1
6

(2)x-0.25=

1
2

x-0.25+0.25=

1
2
+0.25,

x=0.75;

(3)

3
4
x+
1
6
x=66,

11
12
x=66,

11
12
12
11
=66×
12
11

x=72;

(4)

36
x
=
54
3

54x=36×3,

54x÷54=108÷54,

x=2;

(5)1.25:0.25=x:2.4,

0.25x=1.25×2.4,

0.25x÷0.25=3÷0.25,

x=12;

(6)

3
4
5
6
=
1
4
:x

3
4
x=
5
6
×
1
4

3
4
4
3
=
5
24
×
4
3

x=

5
18

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