题目内容
解方程.
75%x-
|
|
(1)75%x-
x=9,
x=9,
x×4=9×4,
x=36;
(2)
=
,
1.5x=10.5×3,
1.5x×
=10.5×3×
,
x=21.
| 1 |
| 2 |
| 1 |
| 4 |
| 1 |
| 4 |
x=36;
(2)
| 12-1.5 |
| x |
| 1.5 |
| 3 |
1.5x=10.5×3,
1.5x×
| 2 |
| 3 |
| 2 |
| 3 |
x=21.
练习册系列答案
相关题目