题目内容
(1)
x=
(2)x÷
=
.
| 4 |
| 9 |
| 8 |
| 27 |
(2)x÷
| 5 |
| 8 |
| 1 |
| 2 |
分析:(1)根据等式性质,两边同时除以
解答;
(2)根据等式性质,两边同时乘
解答.
| 4 |
| 9 |
(2)根据等式性质,两边同时乘
| 5 |
| 8 |
解答:解:(1)
x=
,
x÷
=
÷
,
x=
;
(2)x÷
=
,
x÷
×
=
×
,
x=
.
| 4 |
| 9 |
| 8 |
| 27 |
| 4 |
| 9 |
| 4 |
| 9 |
| 8 |
| 27 |
| 4 |
| 9 |
x=
| 2 |
| 3 |
(2)x÷
| 5 |
| 8 |
| 1 |
| 2 |
x÷
| 5 |
| 8 |
| 5 |
| 8 |
| 1 |
| 2 |
| 5 |
| 8 |
x=
| 5 |
| 16 |
点评:本题主要考查学生根据等式性质解方程的能力.
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