题目内容
解方程:
|
| 2X÷
|
(1)
X+
X=1,
x=1,
x÷
=1÷
,
x=
;
(2)
X=
,
x÷
=
÷
,
x=
;
(3)2X÷
=16,
2X÷
×
=16×
,
2x=10,
2x÷2=10÷2,
x=5.
| 2 |
| 3 |
| 2 |
| 5 |
| 16 |
| 15 |
| 16 |
| 15 |
| 16 |
| 15 |
| 16 |
| 15 |
x=
| 15 |
| 16 |
(2)
| 5 |
| 6 |
| 7 |
| 12 |
| 5 |
| 6 |
| 5 |
| 6 |
| 7 |
| 12 |
| 5 |
| 6 |
x=
| 7 |
| 10 |
(3)2X÷
| 5 |
| 8 |
2X÷
| 5 |
| 8 |
| 5 |
| 8 |
| 5 |
| 8 |
2x=10,
2x÷2=10÷2,
x=5.
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