题目内容
解方程
35+x=53
x-
=
0.1x=30.
35+x=53
x-
| 3 |
| 7 |
| 1 |
| 2 |
0.1x=30.
(1)35+x=53,
35+x-35=53-35,
x=18;
(2)x-
=
,
x-
+
=
+
,
x=
;
(3)0.1x=30,
0.1x÷0.1=30÷0.1,
x=300.
35+x-35=53-35,
x=18;
(2)x-
| 3 |
| 7 |
| 1 |
| 2 |
x-
| 3 |
| 7 |
| 3 |
| 7 |
| 1 |
| 2 |
| 3 |
| 7 |
x=
| 13 |
| 14 |
(3)0.1x=30,
0.1x÷0.1=30÷0.1,
x=300.
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