题目内容
| 37%x-15%=55 |
|
分析:(1)根据等式的性质,两边同时加上15%,再同时除以37%求解即可,
(2)根据等式的性质,两边同时减去
,再同时除以
求解即可.
(2)根据等式的性质,两边同时减去
| 1 |
| 4 |
| 4 |
| 5 |
解答:解:(1)37%x-15%=55,
37%x-15%+15%=55+15%,
37%x=55.15,
37%x÷37%=55.15÷37%,
x=
;
(2)
x+
=
,
x+
-
=
-
,
x=
,
x÷
=
÷
,
x=
.
37%x-15%+15%=55+15%,
37%x=55.15,
37%x÷37%=55.15÷37%,
x=
| 5515 |
| 37 |
(2)
| 4 |
| 5 |
| 1 |
| 4 |
| 1 |
| 2 |
| 4 |
| 5 |
| 1 |
| 4 |
| 1 |
| 4 |
| 1 |
| 2 |
| 1 |
| 4 |
| 4 |
| 5 |
| 1 |
| 4 |
| 4 |
| 5 |
| 4 |
| 5 |
| 1 |
| 4 |
| 4 |
| 5 |
x=
| 5 |
| 16 |
点评:在解方程时应根据等式的性质,注意“=”上下要对齐即可.
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