题目内容
求未知数X的值
①
x-
=1.75; ②0.36:8=x:25.
①
| 3 |
| 4 |
| 3 |
| 8 |
①
x-
=1.75,
x-
+
=1.75+
,
x÷
=
÷
,
x=
;
②0.36:8=x:25,
8x=0.36×25,
8x=9,
8x÷8=9÷8,
x=
.
| 3 |
| 4 |
| 3 |
| 8 |
| 3 |
| 4 |
| 3 |
| 8 |
| 3 |
| 8 |
| 3 |
| 8 |
| 3 |
| 4 |
| 3 |
| 4 |
| 17 |
| 8 |
| 3 |
| 4 |
x=
| 17 |
| 6 |
②0.36:8=x:25,
8x=0.36×25,
8x=9,
8x÷8=9÷8,
x=
| 9 |
| 8 |
练习册系列答案
相关题目