题目内容
求未知数x.
x-0.25x=1.5
:
=x:
.
x-0.25x=1.5
| 3 |
| 8 |
| 1 |
| 4 |
| 1 |
| 10 |
x-0.25x=1.5
:
=x:
(1-0.25)x=1.5
x=
×
0.75x=1.5
x=
x=2 x=
÷
x=
×4
x=
故答案是x=2,x=
.
| 3 |
| 8 |
| 1 |
| 4 |
| 1 |
| 10 |
(1-0.25)x=1.5
| 1 |
| 4 |
| 3 |
| 8 |
| 1 |
| 10 |
0.75x=1.5
| 1 |
| 4 |
| 3 |
| 80 |
x=2 x=
| 3 |
| 80 |
| 1 |
| 4 |
x=
| 3 |
| 80 |
x=
| 3 |
| 20 |
故答案是x=2,x=
| 3 |
| 20 |
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