题目内容
解方程.
|
x-
|
x÷75%=
|
(1)
x+
=4,
x+
-
=4-
,
x÷
=
÷
,
x=4
;
(2)x-
x=
×
,
x=
,
x÷
=
÷
,
x=
;
(3)x÷75%=
,
x÷75%×75%=
×75%,
x=
.
| 5 |
| 6 |
| 1 |
| 4 |
| 5 |
| 6 |
| 1 |
| 4 |
| 1 |
| 4 |
| 1 |
| 4 |
| 5 |
| 6 |
| 5 |
| 6 |
| 15 |
| 4 |
| 5 |
| 6 |
x=4
| 1 |
| 2 |
(2)x-
| 3 |
| 5 |
| 3 |
| 5 |
| 2 |
| 9 |
| 2 |
| 5 |
| 2 |
| 15 |
| 2 |
| 5 |
| 2 |
| 5 |
| 2 |
| 15 |
| 2 |
| 5 |
x=
| 1 |
| 3 |
(3)x÷75%=
| 2 |
| 9 |
x÷75%×75%=
| 2 |
| 9 |
x=
| 1 |
| 6 |
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