题目内容
| 解方程: X÷
| 4X+
| 12÷
|
(1)X÷
=2
X÷
×
=2×
X=
;
(2)4X+
X=51
X=51
X×
=51×
X=2;
(3)12÷
-
X=5
8-
X=5
8-
X+
X=5+
X
5+
X=8
5+
X-5=8-5
X=3
X×
=3×
x=4.
| 3 |
| 4 |
X÷
| 3 |
| 4 |
| 3 |
| 4 |
| 3 |
| 4 |
X=
| 3 |
| 2 |
(2)4X+
| 1 |
| 4 |
| 17 |
| 4 |
| 17 |
| 4 |
| 4 |
| 17 |
| 4 |
| 17 |
X=2;
(3)12÷
| 3 |
| 2 |
| 3 |
| 4 |
8-
| 3 |
| 4 |
8-
| 3 |
| 4 |
| 3 |
| 4 |
| 3 |
| 4 |
5+
| 3 |
| 4 |
5+
| 3 |
| 4 |
| 3 |
| 4 |
| 3 |
| 4 |
| 4 |
| 3 |
| 4 |
| 3 |
x=4.
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