题目内容
解方程:
X÷1.2=0.5
+X=
X-
=
.
X÷1.2=0.5
| 3 |
| 8 |
| 4 |
| 5 |
X-
| 7 |
| 12 |
| 1 |
| 3 |
(1)x÷1.2=0.5,
x÷1.2×1.2=0.5×1.2,
x=0.6;
(2)
+x=
,
+x-
=
-
,
x=
;
(3)x-
=
,
x-
+
=
+
,
x=
.
x÷1.2×1.2=0.5×1.2,
x=0.6;
(2)
| 3 |
| 8 |
| 4 |
| 5 |
| 3 |
| 8 |
| 3 |
| 8 |
| 4 |
| 5 |
| 3 |
| 8 |
x=
| 17 |
| 40 |
(3)x-
| 7 |
| 12 |
| 1 |
| 3 |
x-
| 7 |
| 12 |
| 7 |
| 12 |
| 1 |
| 3 |
| 7 |
| 12 |
x=
| 11 |
| 12 |
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