题目内容
求未知数x:
x+
x=42
=x:6.
| 2 |
| 3 |
| 1 |
| 2 |
| 0.75 |
| 1.5 |
(1)
x+
x=42,
x=42,
x×
=42×
,
x=36;
(2)
=x:6,
1.5x=6×0.75,
1.5x÷1.5=4.5÷1.5,
x=3.
| 2 |
| 3 |
| 1 |
| 2 |
| 7 |
| 6 |
| 7 |
| 6 |
| 6 |
| 7 |
| 6 |
| 7 |
x=36;
(2)
| 0.75 |
| 1.5 |
1.5x=6×0.75,
1.5x÷1.5=4.5÷1.5,
x=3.
练习册系列答案
相关题目