题目内容
解方程:
X÷
=0.8×
;
X-
X=3.
X÷
| 3 |
| 4 |
| 2 |
| 3 |
X-
| 5 |
| 8 |
(1)X÷
=0.8×
,
X÷
=
,
X÷
×
=
×
,
x=
;
(2)X-
X=3,
x=3,
x÷
=3÷
,
x=8.
| 3 |
| 4 |
| 2 |
| 3 |
X÷
| 3 |
| 4 |
| 8 |
| 15 |
X÷
| 3 |
| 4 |
| 3 |
| 4 |
| 8 |
| 15 |
| 3 |
| 4 |
x=
| 1 |
| 10 |
(2)X-
| 5 |
| 8 |
| 3 |
| 8 |
| 3 |
| 8 |
| 3 |
| 8 |
| 3 |
| 8 |
x=8.
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