题目内容
解方程:(1)
+x=
; (2)x-
=
.
| 5 |
| 9 |
| 5 |
| 7 |
| 2 |
| 15 |
| 4 |
| 5 |
(1)
+x=
,
+x-
=
-
,
x=
;
(2)x-
=
,
x-
+
=
+
,
x=
.
| 5 |
| 9 |
| 5 |
| 7 |
| 5 |
| 9 |
| 5 |
| 9 |
| 5 |
| 7 |
| 5 |
| 9 |
x=
| 10 |
| 63 |
(2)x-
| 2 |
| 15 |
| 4 |
| 5 |
x-
| 2 |
| 15 |
| 2 |
| 15 |
| 4 |
| 5 |
| 2 |
| 15 |
x=
| 14 |
| 15 |
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