题目内容
| 解方程 x-
| 12x-9x=8.7 | m+
|
(1)x-
=
,
x-
+
=
+
,
x=
;
(2)12x-9x=8.7,
3x=8.7,
3x÷3=8.7÷3,
x=2.9;
(3)m+
=
,
m+
-
=
-
,
m=
.
| 5 |
| 12 |
| 5 |
| 8 |
x-
| 5 |
| 12 |
| 5 |
| 12 |
| 5 |
| 8 |
| 5 |
| 12 |
x=
| 25 |
| 24 |
(2)12x-9x=8.7,
3x=8.7,
3x÷3=8.7÷3,
x=2.9;
(3)m+
| 1 |
| 2 |
| 4 |
| 5 |
m+
| 1 |
| 2 |
| 1 |
| 2 |
| 4 |
| 5 |
| 1 |
| 2 |
m=
| 3 |
| 10 |
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