题目内容
| x÷
|
|
|
(1)
x=14
x÷
=14÷
x=50;
(2)x÷
=
x÷
×
=
×
x=
;
(3)
x-
x=0.5
x=0.5
x÷
=0.5÷
x=6;
(4)
x+15=18
x+15-15=18-15
x÷
=3÷
x=4.
| 7 |
| 25 |
| 7 |
| 25 |
| 7 |
| 25 |
| 7 |
| 25 |
x=50;
(2)x÷
| 4 |
| 5 |
| 15 |
| 28 |
x÷
| 4 |
| 5 |
| 4 |
| 5 |
| 15 |
| 28 |
| 4 |
| 5 |
x=
| 3 |
| 7 |
(3)
| 1 |
| 3 |
| 1 |
| 4 |
| 1 |
| 12 |
| 1 |
| 12 |
| 1 |
| 12 |
| 1 |
| 12 |
x=6;
(4)
| 3 |
| 4 |
| 3 |
| 4 |
| 3 |
| 4 |
| 3 |
| 4 |
| 3 |
| 4 |
x=4.
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