题目内容
解方程
x:
|
|
|
(1)x:
=
,
x=
×
,
x=1;
(2)
x-
=
,
x-
+
=
+
,
x×
=
×
,
x=
;
(3)
-3x=
,
-3x+3x=
+3x,
-
=
+3x-
,
÷3=3x÷3,
x=
.
| 5 |
| 4 |
| 4 |
| 5 |
x=
| 5 |
| 4 |
| 4 |
| 5 |
x=1;
(2)
| 4 |
| 9 |
| 1 |
| 8 |
| 1 |
| 24 |
| 4 |
| 9 |
| 1 |
| 8 |
| 1 |
| 8 |
| 1 |
| 24 |
| 1 |
| 8 |
| 4 |
| 9 |
| 9 |
| 4 |
| 4 |
| 24 |
| 9 |
| 4 |
x=
| 3 |
| 8 |
(3)
| 7 |
| 8 |
| 5 |
| 16 |
| 7 |
| 8 |
| 5 |
| 16 |
| 7 |
| 8 |
| 5 |
| 16 |
| 5 |
| 16 |
| 5 |
| 16 |
| 9 |
| 16 |
x=
| 3 |
| 16 |
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