题目内容
解方程.
x-
x=16
:x=
:
.
x-
| 1 |
| 5 |
| 4 |
| 5 |
| 2 |
| 3 |
| 5 |
| 3 |
x-
x=16
x=16,
x÷
=16÷
,
x=16×
,
x=20;
(2)
:x=
:
,
x=
×
,
x=
,
x÷
=
÷
,
x=
×
,
x=2.
| 1 |
| 5 |
| 4 |
| 5 |
| 4 |
| 5 |
| 4 |
| 5 |
| 4 |
| 5 |
x=16×
| 5 |
| 4 |
x=20;
(2)
| 4 |
| 5 |
| 2 |
| 3 |
| 5 |
| 3 |
| 2 |
| 3 |
| 4 |
| 5 |
| 5 |
| 3 |
| 2 |
| 3 |
| 4 |
| 3 |
| 2 |
| 3 |
| 2 |
| 3 |
| 4 |
| 3 |
| 2 |
| 3 |
x=
| 4 |
| 3 |
| 3 |
| 2 |
x=2.
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