题目内容
求未知数:
(
+X)×0.3=
:
=X:8.
(
| 1 |
| 3 |
| 5 |
| 8 |
| 2 |
| 3 |
| 1 |
| 9 |
(1)(
+X)×0.3=
,
(
+X)×0.3÷0.3=
÷0.3,
+x=
,
+x-
=
-
,
x=1
;
(2)
:
=X:8,
x=
×8,
x÷
=
÷
,
x=48.
| 1 |
| 3 |
| 5 |
| 8 |
(
| 1 |
| 3 |
| 5 |
| 8 |
| 1 |
| 3 |
| 25 |
| 12 |
| 1 |
| 3 |
| 1 |
| 3 |
| 25 |
| 12 |
| 1 |
| 3 |
x=1
| 3 |
| 4 |
(2)
| 2 |
| 3 |
| 1 |
| 9 |
| 1 |
| 9 |
| 2 |
| 3 |
| 1 |
| 9 |
| 1 |
| 9 |
| 16 |
| 3 |
| 1 |
| 9 |
x=48.
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