题目内容
求未知数
x+
x=0.8÷
:18%=
.
| 2 |
| 5 |
| 1 |
| 2 |
| 2 |
| 9 |
| 3 |
| 20 |
| 6.5 |
| x |
(1)
| 2 |
| 5 |
| 1 |
| 2 |
| 2 |
| 9 |
0.9x=3.6,
0.9x÷0.9=3.6÷0.9,
x=4;
(2)
| 3 |
| 20 |
| 6.5 |
| x |
| 3 |
| 20 |
| 3 |
| 20 |
| 3 |
| 20 |
| 3 |
| 20 |
| 3 |
| 20 |
x=7.8.
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题目内容
| 2 |
| 5 |
| 1 |
| 2 |
| 2 |
| 9 |
| 3 |
| 20 |
| 6.5 |
| x |
| 2 |
| 5 |
| 1 |
| 2 |
| 2 |
| 9 |
| 3 |
| 20 |
| 6.5 |
| x |
| 3 |
| 20 |
| 3 |
| 20 |
| 3 |
| 20 |
| 3 |
| 20 |
| 3 |
| 20 |