题目内容
解方程.
(1)X-
X=
(2)X×
×
=3(3)X+
X=
×
.
(1)X-
| 1 |
| 5 |
| 3 |
| 8 |
| 4 |
| 7 |
| 7 |
| 12 |
| 3 |
| 5 |
| 3 |
| 5 |
| 2 |
| 15 |
(1)x-
x=
,
x=
,
x×
=
×
,
x=
;
(2)x×
×
=3,
x=3,
x×3=3×3,
x=9;
(3)x+
x=
×
,
x=
,
x×
=
×
,
x=
.
| 1 |
| 5 |
| 3 |
| 8 |
| 4 |
| 5 |
| 3 |
| 8 |
| 4 |
| 5 |
| 5 |
| 4 |
| 3 |
| 8 |
| 5 |
| 4 |
x=
| 15 |
| 32 |
(2)x×
| 4 |
| 7 |
| 7 |
| 12 |
| 1 |
| 3 |
| 1 |
| 3 |
x=9;
(3)x+
| 3 |
| 5 |
| 3 |
| 5 |
| 2 |
| 15 |
| 8 |
| 5 |
| 2 |
| 25 |
| 8 |
| 5 |
| 5 |
| 8 |
| 2 |
| 25 |
| 5 |
| 8 |
x=
| 1 |
| 20 |
练习册系列答案
相关题目