题目内容
求未知数x的值.
(1)x:
=4:0.5(2)
x+
x-
=0.5.
(1)x:
| 3 |
| 4 |
| 2 |
| 3 |
| 1 |
| 2 |
| 2 |
| 3 |
(1)x:
=4:0.5,
0.5x=4×
,
0.5x=3,
x=3÷0.5,
x=6;
(2)
x+
x-
=0.5,
x+
x=0.5+
,
x=
,
x=
÷
,
x=1.
| 3 |
| 4 |
0.5x=4×
| 3 |
| 4 |
0.5x=3,
x=3÷0.5,
x=6;
(2)
| 2 |
| 3 |
| 1 |
| 2 |
| 2 |
| 3 |
| 2 |
| 3 |
| 1 |
| 2 |
| 2 |
| 3 |
| 7 |
| 6 |
| 7 |
| 6 |
x=
| 7 |
| 6 |
| 7 |
| 6 |
x=1.
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