题目内容
解方程:
x=
x÷
=
÷
.
| 4 |
| 5 |
| 24 |
| 25 |
x÷
| 5 |
| 6 |
| 6 |
| 25 |
| 3 |
| 5 |
考点:方程的解和解方程
专题:简易方程
分析:(1)根据等式的性质,两边同时除以
即可;
(2)先计算
÷
=
,然后根据等式的性质,两边同时乘以
即可.
| 4 |
| 5 |
(2)先计算
| 6 |
| 25 |
| 3 |
| 5 |
| 2 |
| 5 |
| 5 |
| 6 |
解答:
解:(1)
x=
x÷
=
÷
x=
(2)x÷
=
÷
x÷
=
x÷
×
=
×
x=
| 4 |
| 5 |
| 24 |
| 25 |
| 4 |
| 5 |
| 4 |
| 5 |
| 24 |
| 25 |
| 4 |
| 5 |
x=
| 6 |
| 5 |
(2)x÷
| 5 |
| 6 |
| 6 |
| 25 |
| 3 |
| 5 |
x÷
| 5 |
| 6 |
| 2 |
| 5 |
x÷
| 5 |
| 6 |
| 5 |
| 6 |
| 2 |
| 5 |
| 5 |
| 6 |
x=
| 1 |
| 3 |
点评:此题考查了根据等式的性质解方程,即方程两边同加、同减、同乘或同除以某数(0除外),方程的左右两边仍相等;注意“=”号上下要对齐.
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