题目内容
解方程.
|
| x×(
|
(1)
x-
=0,
x-
+
=0+
,
x=
,
x×3=
×3,
x=
;
(2)
+
x=1,
+
x-
=1-
,
x=
,
x×
=
×
,
x=1;
(3)x×(
+
)=
,
x=
,
x×
=
×
,
x=
.
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| 3 |
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| 3 |
| 4 |
| 3 |
| 4 |
| 1 |
| 3 |
| 3 |
| 4 |
| 1 |
| 3 |
| 3 |
| 4 |
x=
| 9 |
| 4 |
(2)
| 3 |
| 5 |
| 2 |
| 5 |
| 3 |
| 5 |
| 2 |
| 5 |
| 3 |
| 5 |
| 3 |
| 5 |
| 2 |
| 5 |
| 2 |
| 5 |
| 2 |
| 5 |
| 5 |
| 2 |
| 2 |
| 5 |
| 5 |
| 2 |
x=1;
(3)x×(
| 1 |
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| 2 |
| 5 |
| 22 |
| 19 |
| 11 |
| 15 |
| 22 |
| 19 |
| 11 |
| 15 |
| 15 |
| 11 |
| 22 |
| 19 |
| 15 |
| 11 |
x=
| 30 |
| 19 |
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