题目内容
解方程.
(1)5X-3×
| (2)
|
(1)5X-3×
=
,
5x-
=
,
5x-
+
=
+
,
5x=
,
5x÷5=
÷5,
x=
;
(2)
+
x=
,
+
x-
=
-
,
x=
,
x÷
=
÷
,
x=
.
| 7 |
| 10 |
| 7 |
| 5 |
5x-
| 21 |
| 10 |
| 7 |
| 5 |
5x-
| 21 |
| 10 |
| 21 |
| 10 |
| 7 |
| 5 |
| 21 |
| 10 |
5x=
| 7 |
| 2 |
5x÷5=
| 7 |
| 2 |
x=
| 7 |
| 10 |
(2)
| 4 |
| 5 |
| 1 |
| 2 |
| 9 |
| 10 |
| 4 |
| 5 |
| 1 |
| 2 |
| 4 |
| 5 |
| 9 |
| 10 |
| 4 |
| 5 |
| 1 |
| 2 |
| 1 |
| 10 |
| 1 |
| 2 |
| 1 |
| 2 |
| 1 |
| 10 |
| 1 |
| 2 |
x=
| 1 |
| 5 |
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