题目内容
| 3 |
| 8 |
| 3 |
| 4 |
| 9 |
| 10 |
分析:根据等式的性质,在方程两边同时乘(X-
),再同时除以
,最后再同时加上
得解.
| 3 |
| 4 |
| 9 |
| 10 |
| 3 |
| 4 |
解答:解:
÷(X-
)=
,
÷(X-
)×(X-
)=
×(X-
),
×(X-
)=
,
×(X-
)÷
=
÷
,
X-
=
,
X-
+
=
+
,
X=
.
| 3 |
| 8 |
| 3 |
| 4 |
| 9 |
| 10 |
| 3 |
| 8 |
| 3 |
| 4 |
| 3 |
| 4 |
| 9 |
| 10 |
| 3 |
| 4 |
| 9 |
| 10 |
| 3 |
| 4 |
| 3 |
| 8 |
| 9 |
| 10 |
| 3 |
| 4 |
| 9 |
| 10 |
| 3 |
| 8 |
| 9 |
| 10 |
X-
| 3 |
| 4 |
| 5 |
| 12 |
X-
| 3 |
| 4 |
| 3 |
| 4 |
| 5 |
| 12 |
| 3 |
| 4 |
X=
| 7 |
| 6 |
点评:本题主要考查学生根据等式的性质解方程的能力;注意等号要对齐.
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