题目内容
解方程.
①x÷(1-
-25%)=2
;
②
=1.75÷2.
①x÷(1-
| 1 |
| 9 |
| 1 |
| 2 |
②
| 0.75 |
| x |
(1)x÷(1-
-25%)=2
,
x÷
=2
,
x÷
×
=
×
,
x=1
;
(2)
=1.75÷2,
=0.875,
×x=0.875x,
0.875x=0.75,
0.875x÷0.875=0.75÷0.875,
x=
.
| 1 |
| 9 |
| 1 |
| 2 |
x÷
| 23 |
| 36 |
| 1 |
| 2 |
x÷
| 23 |
| 36 |
| 23 |
| 36 |
| 5 |
| 2 |
| 23 |
| 36 |
x=1
| 43 |
| 72 |
(2)
| 0.75 |
| x |
| 0.75 |
| x |
| 0.75 |
| x |
0.875x=0.75,
0.875x÷0.875=0.75÷0.875,
x=
| 6 |
| 7 |
练习册系列答案
相关题目