题目内容
解方程
|
1÷x=
|
x+
|
(1)
x=
,
x÷
=
÷
,
x=
;
(2)1÷x=
,
1÷x×x=
×x,
1÷
=
x÷
,
x=8;
(3)x+
x=60,
1
x=60,
1
x÷1
=60÷1
,
x=40.
| 8 |
| 9 |
| 5 |
| 6 |
| 8 |
| 9 |
| 8 |
| 9 |
| 5 |
| 6 |
| 8 |
| 9 |
x=
| 15 |
| 16 |
(2)1÷x=
| 1 |
| 8 |
1÷x×x=
| 1 |
| 8 |
1÷
| 1 |
| 8 |
| 1 |
| 8 |
| 1 |
| 8 |
x=8;
(3)x+
| 1 |
| 2 |
1
| 1 |
| 2 |
1
| 1 |
| 2 |
| 1 |
| 2 |
| 1 |
| 2 |
x=40.
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