题目内容
(2
+x)÷3.75-
=
.
| 2 |
| 3 |
| 2 |
| 5 |
| 32 |
| 45 |
分析:把2
+x看成一个整体,等式的两边同时加上
,然后等式的两边同时乘3.75,最后等式的两边同时减去2
即可.
| 2 |
| 3 |
| 2 |
| 5 |
| 2 |
| 3 |
解答:解:
(2
+x)÷3.75-
=
(2
+x)÷3.75-
+
=
+
(2
+x)÷3.75=
(2
+x)÷3.75×3.75=
×3.75
2
+x=
2
+x-2
=
-2
x=
.
(2
| 2 |
| 3 |
| 2 |
| 5 |
| 32 |
| 45 |
(2
| 2 |
| 3 |
| 2 |
| 5 |
| 2 |
| 5 |
| 32 |
| 45 |
| 2 |
| 5 |
(2
| 2 |
| 3 |
| 10 |
| 9 |
(2
| 2 |
| 3 |
| 10 |
| 9 |
2
| 2 |
| 3 |
| 25 |
| 6 |
2
| 2 |
| 3 |
| 2 |
| 3 |
| 25 |
| 6 |
| 2 |
| 3 |
x=
| 3 |
| 2 |
点评:本题主要考查解方程,根据等式的性质进行解答即可.
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