题目内容
| 解方程 120%x-
| 4x+0.4x=70.4 | ||||||||
x×(1-
|
| ||||||||
|
(1)120%x-
X=6.8,
x=6.8,
x÷
=6.8÷
,
x=24;
(2)4x+0.4x=70.4,
4.4x=70.4,
4.4x÷4.4=70.4÷4.4,
x=16;
(3)x×(1-
)=3.6,
x×
=3.6,
x×
÷
=3.6÷
,
x=4.8;
(4)
-
x=
,
-
x+
x=
+
x,
-
=
+
x-
,
÷
=
x÷
,
x=
;
(5)
×(x-
)=0,
×(x-
)÷
=0÷
,
x-
+
=0+
,
x=
.
| 11 |
| 12 |
| 17 |
| 60 |
| 17 |
| 60 |
| 17 |
| 60 |
| 17 |
| 60 |
x=24;
(2)4x+0.4x=70.4,
4.4x=70.4,
4.4x÷4.4=70.4÷4.4,
x=16;
(3)x×(1-
| 1 |
| 4 |
x×
| 3 |
| 4 |
x×
| 3 |
| 4 |
| 3 |
| 4 |
| 3 |
| 4 |
x=4.8;
(4)
| 1 |
| 2 |
| 4 |
| 5 |
| 1 |
| 10 |
| 1 |
| 2 |
| 4 |
| 5 |
| 4 |
| 5 |
| 1 |
| 10 |
| 4 |
| 5 |
| 1 |
| 2 |
| 1 |
| 10 |
| 1 |
| 10 |
| 4 |
| 5 |
| 1 |
| 10 |
| 2 |
| 5 |
| 4 |
| 5 |
| 4 |
| 5 |
| 4 |
| 5 |
x=
| 1 |
| 2 |
(5)
| 3 |
| 4 |
| 1 |
| 3 |
| 3 |
| 4 |
| 1 |
| 3 |
| 3 |
| 4 |
| 3 |
| 4 |
x-
| 1 |
| 3 |
| 1 |
| 3 |
| 1 |
| 3 |
x=
| 1 |
| 3 |
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