题目内容
求未知数x.
| 14-3x=8 | x+
|
6:
|
(1)14-3x=8,
3x+8=14,
3x+8-8=14-8,
3x=6,
3x÷3=6÷3,
x=2;
(2)x+
x=1.8,
1.5x=1.8,
1.5x÷1.5=1.8÷1.5,
x=1.2;
(3)6:
=x:0.5,
x=6×0.5,
x=3,
x÷
=3÷
,
x=5.
3x+8=14,
3x+8-8=14-8,
3x=6,
3x÷3=6÷3,
x=2;
(2)x+
| 1 |
| 2 |
1.5x=1.8,
1.5x÷1.5=1.8÷1.5,
x=1.2;
(3)6:
| 3 |
| 5 |
| 3 |
| 5 |
| 3 |
| 5 |
| 3 |
| 5 |
| 3 |
| 5 |
| 3 |
| 5 |
x=5.
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