题目内容
求未知数x.
①12:
=x:
②6+1.5x=15③x-
x=
.
①12:
| 3 |
| 5 |
| 1 |
| 2 |
| 1 |
| 4 |
| 3 |
| 8 |
①12:
| 3 |
| 5 |
| 1 |
| 2 |
| 3 |
| 5 |
| 1 |
| 2 |
| 3 |
| 5 |
| 3 |
| 5 |
| 3 |
| 5 |
| 3 |
| 5 |
x=10;
②6+1.5x=15,
6+1.5x-6=15-6,
1.5x=9,
1.5x÷1.5=9÷1.5,
x=6;
③x-
| 1 |
| 4 |
| 3 |
| 8 |
| 3 |
| 4 |
| 3 |
| 8 |
| 3 |
| 4 |
| 3 |
| 4 |
| 3 |
| 8 |
| 3 |
| 4 |
x=
| 1 |
| 2 |
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