题目内容
解方程或比例:
|
|
(1)
x-5%=17.54,
x-5%+5%=17.54+5%,
x÷
=17.59÷
,
x=23
;
(2)
:
=
:(4-x),
×4-
x=
×
,
2-
x+
x=
+
x,
2-
=
+
x-
,
÷
=
x÷
,
x=3
.
| 3 |
| 4 |
| 3 |
| 4 |
| 3 |
| 4 |
| 3 |
| 4 |
| 3 |
| 4 |
x=23
| 34 |
| 75 |
(2)
| 1 |
| 2 |
| 2 |
| 7 |
| 1 |
| 3 |
| 1 |
| 2 |
| 1 |
| 2 |
| 2 |
| 7 |
| 1 |
| 3 |
2-
| 1 |
| 2 |
| 1 |
| 2 |
| 2 |
| 21 |
| 1 |
| 2 |
2-
| 2 |
| 21 |
| 2 |
| 21 |
| 1 |
| 2 |
| 2 |
| 21 |
| 40 |
| 21 |
| 1 |
| 2 |
| 1 |
| 2 |
| 1 |
| 2 |
x=3
| 17 |
| 21 |
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