题目内容
解方程:
①
-0.6x=
②
x+
x=0.5
③14:x=
:2.5.
①
| 3 |
| 5 |
| 1 |
| 2 |
②
| 1 |
| 4 |
| 1 |
| 3 |
③14:x=
| 5 |
| 7 |
①
-0.6x=
,
0.6-0.6x+0.6x=0.5+0.6x,
0.5+0.6x=0.6,
0.5+0.6x-0.5=0.6-0.5,
0.6x=0.1,
0.6x÷0.6=0.1÷0.6,
x=
;
②
x+
x=0.5,
(
+
)x=
,
x=
,
x×
=
×
,
x=
;
③14:x=
:2.5,
x=14×2.5,
x×
=35×
,
x=49.
| 3 |
| 5 |
| 1 |
| 2 |
0.6-0.6x+0.6x=0.5+0.6x,
0.5+0.6x=0.6,
0.5+0.6x-0.5=0.6-0.5,
0.6x=0.1,
0.6x÷0.6=0.1÷0.6,
x=
| 1 |
| 6 |
②
| 1 |
| 4 |
| 1 |
| 3 |
(
| 1 |
| 4 |
| 1 |
| 3 |
| 1 |
| 2 |
| 7 |
| 12 |
| 1 |
| 2 |
| 7 |
| 12 |
| 12 |
| 7 |
| 1 |
| 2 |
| 12 |
| 7 |
x=
| 6 |
| 7 |
③14:x=
| 5 |
| 7 |
| 5 |
| 7 |
| 5 |
| 7 |
| 7 |
| 5 |
| 7 |
| 5 |
x=49.
练习册系列答案
相关题目