题目内容
求末知数X
+
X=610:X=
:0.2.
| 7 |
| 4 |
| 1 |
| 4 |
| 9 |
| 2 |
(1)
+
X=6,
+
X-
=6-
,
X=
,
X÷
=
÷
,
X=17;
(2)10:X=
:0.2,
X=10×0.2,
X=2,
X÷
=2÷
,
X=
.
| 7 |
| 4 |
| 1 |
| 4 |
| 7 |
| 4 |
| 1 |
| 4 |
| 7 |
| 4 |
| 7 |
| 4 |
| 1 |
| 4 |
| 17 |
| 4 |
| 1 |
| 4 |
| 1 |
| 4 |
| 17 |
| 4 |
| 1 |
| 4 |
X=17;
(2)10:X=
| 9 |
| 2 |
| 9 |
| 2 |
| 9 |
| 2 |
| 9 |
| 2 |
| 9 |
| 2 |
| 9 |
| 2 |
X=
| 4 |
| 9 |
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