题目内容
求未知数x:
|
|
(1)
=x:6,
1.5x=0.75×6,
1.5x=4.5,
1.5x÷1.5=4.5÷1.5,
x=3;
(2)x+
x=42,
1.5x=42,
1.5x÷1.5=42÷1.5,
x=28.
| 0.75 |
| 1.5 |
1.5x=0.75×6,
1.5x=4.5,
1.5x÷1.5=4.5÷1.5,
x=3;
(2)x+
| 1 |
| 2 |
1.5x=42,
1.5x÷1.5=42÷1.5,
x=28.
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