题目内容
| 解下列方程. 6x+
x÷
x÷
|
(1)6x+
x=9,
x=9,
x×
=9×
,
x=1
;
(2)
x+20%x=
,
x+
x=
,
x=
,
x×
=
×
,
x=
,
x=1
;
(3)x÷
=
,
x×
×
=
×
,
x=
;
(4)x÷
×
=
,
x×
×
=
,
x×
×
=
×
,
x=1.
| 1 |
| 2 |
| 13 |
| 2 |
| 13 |
| 2 |
| 2 |
| 13 |
| 2 |
| 13 |
x=1
| 5 |
| 13 |
(2)
| 1 |
| 4 |
| 13 |
| 20 |
| 1 |
| 4 |
| 1 |
| 5 |
| 13 |
| 20 |
| 9 |
| 20 |
| 13 |
| 20 |
| 9 |
| 20 |
| 20 |
| 9 |
| 13 |
| 20 |
| 20 |
| 9 |
x=
| 13 |
| 9 |
x=1
| 4 |
| 9 |
(3)x÷
| 5 |
| 8 |
| 1 |
| 12 |
x×
| 8 |
| 5 |
| 5 |
| 8 |
| 1 |
| 12 |
| 5 |
| 8 |
x=
| 5 |
| 96 |
(4)x÷
| 6 |
| 7 |
| 9 |
| 14 |
| 3 |
| 4 |
x×
| 7 |
| 6 |
| 9 |
| 14 |
| 3 |
| 4 |
x×
| 3 |
| 4 |
| 4 |
| 3 |
| 3 |
| 4 |
| 4 |
| 3 |
x=1.
练习册系列答案
相关题目