题目内容
求未知数X
14-
| 12:x=0.5:1.5. |
(1)14-
x=10,
14-
x+
x=10+
x,
14-10=10+
x-10,
4=
x,
4÷
=
x÷
,
x=5;
(2)12:x=0.5:1.5,
0.5x=12×1.5,
0.5x=18,
0.5x÷0.5=18÷0.5,
x=36.
| 4 |
| 5 |
14-
| 4 |
| 5 |
| 4 |
| 5 |
| 4 |
| 5 |
14-10=10+
| 4 |
| 5 |
4=
| 4 |
| 5 |
4÷
| 4 |
| 5 |
| 4 |
| 5 |
| 4 |
| 5 |
x=5;
(2)12:x=0.5:1.5,
0.5x=12×1.5,
0.5x=18,
0.5x÷0.5=18÷0.5,
x=36.
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