题目内容
解方程
x÷
=
×
x÷
=16
x=
×
.
x÷
5 |
6 |
4 |
5 |
3 |
8 |
2 |
3 |
4 |
5 |
9 |
16 |
5 |
12 |
3 |
4 |
分析:(1)等式的两边同时乘
即可;
(2)等式的两边同时乘
,然后等式的两边同时除以
即可;
(3)等式的两边同时除以
即可.
5 |
6 |
(2)等式的两边同时乘
4 |
5 |
2 |
3 |
(3)等式的两边同时除以
9 |
16 |
解答:解:(1)x÷
=
×
,
x÷
×
=
×
×
,
x=
;
(2)
x÷
=16,
x÷
×
=16×
,
x=16×
,
x÷
=16×
÷
,
x=16×
×
,
x=
;
(3)
x=
×
,
x÷
=
×
÷
,
x=
×
×
,
x=
.
5 |
6 |
4 |
5 |
3 |
8 |
x÷
5 |
6 |
5 |
6 |
4 |
5 |
3 |
8 |
5 |
6 |
x=
1 |
4 |
(2)
2 |
3 |
4 |
5 |
2 |
3 |
4 |
5 |
4 |
5 |
4 |
5 |
2 |
3 |
4 |
5 |
2 |
3 |
2 |
3 |
4 |
5 |
2 |
3 |
x=16×
4 |
5 |
3 |
2 |
x=
96 |
5 |
(3)
9 |
16 |
5 |
12 |
3 |
4 |
9 |
16 |
9 |
16 |
5 |
12 |
3 |
4 |
9 |
16 |
x=
5 |
12 |
3 |
4 |
16 |
9 |
x=
5 |
9 |
点评:本题主要考查解方程,根据等式的性质进行解答即可.
练习册系列答案
相关题目