题目内容
解方程.
| x÷
| x-
|
(1)
x=20÷
,
x÷
=20÷
÷
,
x=64;
(2)x÷
=
,
x÷
×
=
×
,
x=
;
(3)x-
x=
,
x=
,
x÷
=
÷
,
x=
.
| 5 |
| 8 |
| 1 |
| 2 |
| 5 |
| 8 |
| 5 |
| 8 |
| 1 |
| 2 |
| 5 |
| 8 |
x=64;
(2)x÷
| 2 |
| 3 |
| 5 |
| 6 |
x÷
| 2 |
| 3 |
| 2 |
| 3 |
| 5 |
| 6 |
| 2 |
| 3 |
x=
| 5 |
| 9 |
(3)x-
| 3 |
| 4 |
| 1 |
| 8 |
| 1 |
| 4 |
| 1 |
| 8 |
| 1 |
| 4 |
| 1 |
| 4 |
| 1 |
| 8 |
| 1 |
| 4 |
x=
| 1 |
| 2 |
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