题目内容
|
1.5x=28.5 | ||||
|
8x=42. |
(1)
x=
,
x×9=
×9,
x=6;
(2)1.5x=28.5,
1.5x÷1.5=28.5÷1.5,
x=19;
(3)
x-2=40,
x-2+2=40+2,
x=42,
x×
=42×
,
x=70;
(4)8x=42,
8x÷8=42÷8,
x=5.25.
| 1 |
| 9 |
| 2 |
| 3 |
| 1 |
| 9 |
| 2 |
| 3 |
x=6;
(2)1.5x=28.5,
1.5x÷1.5=28.5÷1.5,
x=19;
(3)
| 3 |
| 5 |
| 3 |
| 5 |
| 3 |
| 5 |
| 3 |
| 5 |
| 5 |
| 3 |
| 5 |
| 3 |
x=70;
(4)8x=42,
8x÷8=42÷8,
x=5.25.
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