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 |
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