题目内容
①
|
②x÷
|
分析:①等式的两边同时减去3,然后等式的两边同时除以
即可;
②然后等式的两边同时加上
,然后等式的两边再同时乘
即可.
| 2 |
| 5 |
②然后等式的两边同时加上
| 2 |
| 3 |
| 1 |
| 4 |
解答:解:
①
x+3=5,
x+3-3=5-3,
x=2,
x÷
=2÷
,
x=5;
②x÷
-
=
,
x÷
-
+
=
+
,
x÷
=
,
x÷
×
=
×
,
x=
.
①
| 2 |
| 5 |
| 2 |
| 5 |
| 2 |
| 5 |
| 2 |
| 5 |
| 2 |
| 5 |
| 2 |
| 5 |
x=5;
②x÷
| 1 |
| 4 |
| 2 |
| 3 |
| 1 |
| 6 |
x÷
| 1 |
| 4 |
| 2 |
| 3 |
| 2 |
| 3 |
| 1 |
| 6 |
| 2 |
| 3 |
x÷
| 1 |
| 4 |
| 5 |
| 6 |
x÷
| 1 |
| 4 |
| 1 |
| 4 |
| 5 |
| 6 |
| 1 |
| 4 |
x=
| 5 |
| 24 |
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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