题目内容
解方程:
x+
x=22
:x=
.
| 2 |
| 3 |
| 1 |
| 4 |
| 3 |
| 8 |
| 1 |
| 4 |
(1)
x+
x=22,
(
+
)x=22,
x=22,
x×
=22×
,
x=24;
(2)
:x=
,
x=
,
x×4=
×4,
x=
.
| 2 |
| 3 |
| 1 |
| 4 |
(
| 2 |
| 3 |
| 1 |
| 4 |
| 11 |
| 12 |
| 11 |
| 12 |
| 12 |
| 11 |
| 12 |
| 11 |
x=24;
(2)
| 3 |
| 8 |
| 1 |
| 4 |
| 1 |
| 4 |
| 3 |
| 8 |
| 1 |
| 4 |
| 3 |
| 8 |
x=
| 3 |
| 2 |
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