题目内容
解方程.
X+
X=500
a+
=
8.65+
-a+
=0.
X+
| 1 |
| 2 |
| 1 |
| 6 |
| 1 |
| 3 |
| 1 |
| 2 |
8.65+
| 1 |
| 3 |
| 1 |
| 6 |
x+
x=500
x=500,
x=500×
,
x=
;
a+
=
a=
-
,
a=
,
a=1;
8.65+
-a+
=0
8.65+
+
-a=0,
8.65+0.5-a=0,
a=9.15.
| 1 |
| 2 |
| 3 |
| 2 |
x=500×
| 2 |
| 3 |
x=
| 1000 |
| 3 |
| 1 |
| 6 |
| 1 |
| 3 |
| 1 |
| 2 |
| 1 |
| 6 |
| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 6 |
| 1 |
| 6 |
a=1;
8.65+
| 1 |
| 3 |
| 1 |
| 6 |
8.65+
| 1 |
| 3 |
| 1 |
| 6 |
8.65+0.5-a=0,
a=9.15.
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