题目内容
求未知数X
|
|
(1)
X+
X=1.8,
(
+
)X=1.8,
X=1.8,
X×2=1.8×2,
X=3.6;
(2)
:
=
:X,
X=
×
,
X=
,
X×2=
×2,
X=
.
| 1 |
| 3 |
| 1 |
| 6 |
(
| 1 |
| 3 |
| 1 |
| 6 |
| 1 |
| 2 |
| 1 |
| 2 |
X=3.6;
(2)
| 1 |
| 2 |
| 2 |
| 7 |
| 3 |
| 4 |
| 1 |
| 2 |
| 2 |
| 7 |
| 3 |
| 4 |
| 1 |
| 2 |
| 3 |
| 14 |
| 1 |
| 2 |
| 3 |
| 14 |
X=
| 3 |
| 7 |
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