题目内容
| 12÷x=
| x-
|
(1)
x-0.5=1.5
x-0.5+0.5=1.5+0.5
x=2
x×
=2×
x=
;
(2)12÷x=
12÷x×x=
x
x=12
x×
=12×
x=18;
(3)x-
x+
=1
x+
=1
x+
-
=1-
x=
x×3=
×3
x=2.
| 4 |
| 5 |
| 4 |
| 5 |
| 4 |
| 5 |
| 4 |
| 5 |
| 5 |
| 4 |
| 5 |
| 4 |
x=
| 5 |
| 2 |
(2)12÷x=
| 2 |
| 3 |
12÷x×x=
| 2 |
| 3 |
| 2 |
| 3 |
| 2 |
| 3 |
| 3 |
| 2 |
| 3 |
| 2 |
x=18;
(3)x-
| 2 |
| 3 |
| 1 |
| 3 |
| 1 |
| 3 |
| 1 |
| 3 |
| 1 |
| 3 |
| 1 |
| 3 |
| 1 |
| 3 |
| 1 |
| 3 |
| 1 |
| 3 |
| 2 |
| 3 |
| 1 |
| 3 |
| 2 |
| 3 |
x=2.
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