题目内容
求未知数X.
| 1 6-4X=1.4 | 8:X=
|
(1)16-4X=1.4,
16-4X+4X=1.4+4X,
4X+1.4=16,
4X+1.4-1.4=16-1.4,
4X=14.6,
4X÷4=14.6÷4,
X=3.65;
(2)8:X=
:
,
X=8×
,
X=2,
X÷
=2÷
,
X=6.
16-4X+4X=1.4+4X,
4X+1.4=16,
4X+1.4-1.4=16-1.4,
4X=14.6,
4X÷4=14.6÷4,
X=3.65;
(2)8:X=
| 1 |
| 3 |
| 1 |
| 4 |
| 1 |
| 3 |
| 1 |
| 4 |
| 1 |
| 3 |
| 1 |
| 3 |
| 1 |
| 3 |
| 1 |
| 3 |
X=6.
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