题目内容
求未知数x.
:x=16:
x-1.25×6=7.
| 7 |
| 8 |
| 4 |
| 7 |
| 1 |
| 2 |
(1)
:x=16:
,
16x=
×
,
16x×
=
×
,
x=
,
(2)
x-1.25×6=7.
x-7.5=7,
x-7.5+7.5=7+7.5,
x=14.5,
x×2=14.5×2,
x=29.
| 7 |
| 8 |
| 4 |
| 7 |
16x=
| 7 |
| 8 |
| 4 |
| 7 |
16x×
| 1 |
| 16 |
| 1 |
| 2 |
| 1 |
| 16 |
x=
| 1 |
| 32 |
(2)
| 1 |
| 2 |
| 1 |
| 2 |
| 1 |
| 2 |
| 1 |
| 2 |
| 1 |
| 2 |
x=29.
练习册系列答案
相关题目