题目内容
| 解方程,我没问题! 4÷X=
| 8(x-2)=2(x+7) |
|
(1)4÷X=
,
4÷X×X=
X,
X=4,
X÷
=4÷
,
X=10;
(2)8(x-2)=2(x+7),
8X-16=2X+14,
6X-16=14,
6X=30,
X=5;
(3)
:18%=
,
X=0.18×6.5,
X=1.17,
X=7.8.
| 2 |
| 5 |
4÷X×X=
| 2 |
| 5 |
| 2 |
| 5 |
| 2 |
| 5 |
| 2 |
| 5 |
| 2 |
| 5 |
X=10;
(2)8(x-2)=2(x+7),
8X-16=2X+14,
6X-16=14,
6X=30,
X=5;
(3)
| 3 |
| 20 |
| 6.5 |
| X |
| 3 |
| 20 |
| 3 |
| 20 |
X=7.8.
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