题目内容
解方程:
X-
=
+
+X=
.
X-
| 5 |
| 6 |
| 1 |
| 3 |
| 1 |
| 4 |
| 2 |
| 5 |
| 9 |
| 10 |
(1)X-
=
,
x-
+
=
+
,
x=
;
(2)
+
+X=
+x=
,
+x-
=
-
,
x=
.
| 5 |
| 6 |
| 1 |
| 3 |
x-
| 5 |
| 6 |
| 5 |
| 6 |
| 1 |
| 3 |
| 5 |
| 6 |
x=
| 7 |
| 6 |
(2)
| 1 |
| 4 |
| 2 |
| 5 |
| 9 |
| 10 |
| 13 |
| 20 |
| 9 |
| 10 |
| 13 |
| 20 |
| 13 |
| 20 |
| 9 |
| 10 |
| 13 |
| 20 |
x=
| 1 |
| 4 |
练习册系列答案
相关题目