题目内容
解方程
X-0.42=6.9
5X=1.3
X÷0.08=2.5
X+
=
.
X-0.42=6.9
5X=1.3
X÷0.08=2.5
X+
| 3 |
| 8 |
| 5 |
| 6 |
(1)X-0.42=6.9,
X-0.42+0.42=6.9+0.42,
X=7.32;
(2)5X=1.3,
5X÷5=1.3÷5,
X=0.26;
(3)X÷0.08=2.5,
X÷0.08×0.08=2.5×0.08,
X=0.2;
(4)X+
=
,
X+
-
=
-
,
X=
.
X-0.42+0.42=6.9+0.42,
X=7.32;
(2)5X=1.3,
5X÷5=1.3÷5,
X=0.26;
(3)X÷0.08=2.5,
X÷0.08×0.08=2.5×0.08,
X=0.2;
(4)X+
| 3 |
| 8 |
| 5 |
| 6 |
X+
| 3 |
| 8 |
| 3 |
| 8 |
| 5 |
| 6 |
| 3 |
| 8 |
X=
| 11 |
| 24 |
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