题目内容
| 解方程. x+
|
| x÷1.8=3.6. |
(1)x+
=
x+
-
=
-
,
x=
;
(2)
-x=
,
-x+x=
+x,
+x=
,
+x-
=
-
,
x=
;
(3)x÷1.8=3.6,
x÷1.8×1.8=3.6×1.8,
x=6.48.
| 5 |
| 12 |
| 6 |
| 7 |
x+
| 5 |
| 12 |
| 5 |
| 12 |
| 6 |
| 7 |
| 5 |
| 12 |
x=
| 37 |
| 84 |
(2)
| 4 |
| 5 |
| 3 |
| 8 |
| 4 |
| 5 |
| 3 |
| 8 |
| 3 |
| 8 |
| 4 |
| 5 |
| 3 |
| 8 |
| 3 |
| 8 |
| 4 |
| 5 |
| 3 |
| 8 |
x=
| 17 |
| 40 |
(3)x÷1.8=3.6,
x÷1.8×1.8=3.6×1.8,
x=6.48.
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