题目内容
解方程:
(1)
x-1=
(2)x÷5=
×
.
(1)
| 1 |
| 2 |
| 1 |
| 2 |
(2)x÷5=
| 3 |
| 5 |
| 1 |
| 3 |
(1)移项得:
x=
+1
x=
,
系数化成1得:x=3;
(2)原方程化为
=
,
方程两边都乘以5得:x=1.
| 1 |
| 2 |
| 1 |
| 2 |
| 1 |
| 2 |
| 3 |
| 2 |
系数化成1得:x=3;
(2)原方程化为
| x |
| 5 |
| 1 |
| 5 |
方程两边都乘以5得:x=1.
练习册系列答案
相关题目