题目内容
求未知数x
x-
|
| x-
|
根据题意可得:
(1)x-
=
,
x-
+
=
+
,
x=
;
(2)
=
,
25x=2×75,
25x=150,
25x÷25=150÷25,
x=6;
(3)x-
x=6,
x=6,
x÷
=6÷
,
x=10.
(1)x-
| 2 |
| 5 |
| 3 |
| 10 |
x-
| 2 |
| 5 |
| 2 |
| 5 |
| 3 |
| 10 |
| 2 |
| 5 |
x=
| 7 |
| 10 |
(2)
| 25 |
| 2 |
| 75 |
| x |
25x=2×75,
25x=150,
25x÷25=150÷25,
x=6;
(3)x-
| 2 |
| 5 |
| 3 |
| 5 |
| 3 |
| 5 |
| 3 |
| 5 |
| 3 |
| 5 |
x=10.
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