题目内容
解方程:
| 0.5x-0.2x=6. |
(1)
-x=
,
-x+x=
+x,
-
=
+x-
,
x=
;
(2)0.5x-0.2x=6,
0.3x=6,
0.3x÷0.3=6÷0.3,
x=20.
| 5 |
| 8 |
| 1 |
| 4 |
| 5 |
| 8 |
| 1 |
| 4 |
| 5 |
| 8 |
| 1 |
| 4 |
| 1 |
| 4 |
| 1 |
| 4 |
x=
| 3 |
| 8 |
(2)0.5x-0.2x=6,
0.3x=6,
0.3x÷0.3=6÷0.3,
x=20.
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