题目内容
2
|
|
1.3x-x=9.6 | x-
|
(1)2
-(
+
),
=2
-
-
,
=2-
,
=1
;
(2)
-
+
,
=
-(
-
),
=
-
,
=
;
(3)1.3x-x=9.6,
0.3x=9.6,
0.3x÷0.3=9.6÷0.3,
x=32;
(4)x-
=
,
x-
+
=
+
,
x=
.
2 |
9 |
2 |
9 |
5 |
12 |
=2
2 |
9 |
2 |
9 |
5 |
12 |
=2-
5 |
12 |
=1
7 |
12 |
(2)
8 |
9 |
2 |
3 |
1 |
3 |
=
8 |
9 |
2 |
3 |
1 |
3 |
=
8 |
9 |
1 |
3 |
=
5 |
9 |
(3)1.3x-x=9.6,
0.3x=9.6,
0.3x÷0.3=9.6÷0.3,
x=32;
(4)x-
3 |
4 |
1 |
12 |
x-
3 |
4 |
3 |
4 |
1 |
12 |
3 |
4 |
x=
5 |
6 |
练习册系列答案
相关题目