题目内容
解方程.
|
x÷
|
分析:(1)先求出
×
=
,再根据等式的性质,在方程两边同时除以
得解;
(2)先求出
÷
=
,再根据等式的性质,在方程两边同时乘
得解.
| 1 |
| 6 |
| 16 |
| 51 |
| 8 |
| 153 |
| 8 |
| 9 |
(2)先求出
| 26 |
| 45 |
| 13 |
| 25 |
| 10 |
| 9 |
| 6 |
| 35 |
解答:解:(1)
x=
×
,
x÷
=
÷
,
x=
;
(2)x÷
=
÷
,
x÷
=
,
x÷
×
=
×
,
x=
.
| 8 |
| 9 |
| 1 |
| 6 |
| 16 |
| 51 |
| 8 |
| 9 |
| 8 |
| 9 |
| 8 |
| 153 |
| 8 |
| 9 |
x=
| 1 |
| 17 |
(2)x÷
| 6 |
| 35 |
| 26 |
| 45 |
| 13 |
| 25 |
x÷
| 6 |
| 35 |
| 10 |
| 9 |
x÷
| 6 |
| 35 |
| 6 |
| 35 |
| 10 |
| 9 |
| 6 |
| 35 |
x=
| 4 |
| 21 |
点评:此题考查了根据等式的性质解方程,即等式两边同加、同减、同乘或同除以一个数(0除外),等式的左右两边仍相等;注意等号上下要对齐.
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