题目内容
求未知数x.
(1)
-
x=2
(2)
:
=
.
(1)
| 9 |
| 2 |
| 1 |
| 4 |
(2)
| 1 |
| 3 |
| 1 |
| 2 |
| x |
| 0.01 |
(1)
-
x=2,
-
x+
x=2+
x,
-2=2+
x-2,
÷
=
x÷
,
x=10;
(2)
:
=
,
x=
×0.01,
x÷
=
÷
,
x=
.
| 9 |
| 2 |
| 1 |
| 4 |
| 9 |
| 2 |
| 1 |
| 4 |
| 1 |
| 4 |
| 1 |
| 4 |
| 9 |
| 2 |
| 1 |
| 4 |
| 5 |
| 2 |
| 1 |
| 4 |
| 1 |
| 4 |
| 1 |
| 4 |
x=10;
(2)
| 1 |
| 3 |
| 1 |
| 2 |
| x |
| 0.01 |
| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 2 |
| 1 |
| 2 |
| 1 |
| 300 |
| 1 |
| 2 |
x=
| 1 |
| 150 |
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