题目内容
解方程
| ⅹ×
|
|
|
(1)
÷ⅹ=
,
÷x×x=
×x,
x=
,
x×2=
×2,
x=
;
(2)x×
=4,
x×
÷
=4÷
,
x=5;
(3)
ⅹ=
,
ⅹ×
=
×
,
x=3;
(4)
ⅹ-6=7,
ⅹ-6+6=7+6,
ⅹ=13,
ⅹ×2=13×2,
x=26.
| 1 |
| 8 |
| 1 |
| 2 |
| 1 |
| 8 |
| 1 |
| 2 |
| 1 |
| 2 |
| 1 |
| 8 |
| 1 |
| 2 |
| 1 |
| 8 |
x=
| 1 |
| 4 |
(2)x×
| 4 |
| 5 |
x×
| 4 |
| 5 |
| 4 |
| 5 |
| 4 |
| 5 |
x=5;
(3)
| 3 |
| 7 |
| 9 |
| 7 |
| 3 |
| 7 |
| 7 |
| 3 |
| 9 |
| 7 |
| 7 |
| 3 |
x=3;
(4)
| 1 |
| 2 |
| 1 |
| 2 |
| 1 |
| 2 |
| 1 |
| 2 |
x=26.
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