题目内容
解方程
2x-
=0.54
8x=1.76-
x
:x=
:4.
2x-
| 2 |
| 5 |
8x=1.76-
| 4 |
| 5 |
| 3 |
| 5 |
| 1 |
| 3 |
(1)2x-
=0.54,
2x-
+
=0.54+
,
2x=0.94,
x=0.47;
(2)8x=1.76-
x,
8x+
x=1.76-
x+
x,
8.8x=1.76,
x=0.2;
(3)
:x=
:4,
x=
×4,
x=
,
x=7
.
| 2 |
| 5 |
2x-
| 2 |
| 5 |
| 2 |
| 5 |
| 2 |
| 5 |
2x=0.94,
x=0.47;
(2)8x=1.76-
| 4 |
| 5 |
8x+
| 4 |
| 5 |
| 4 |
| 5 |
| 4 |
| 5 |
8.8x=1.76,
x=0.2;
(3)
| 3 |
| 5 |
| 1 |
| 3 |
| 1 |
| 3 |
| 3 |
| 5 |
| 1 |
| 3 |
| 12 |
| 5 |
x=7
| 1 |
| 5 |
练习册系列答案
相关题目