题目内容
解方程
6.58÷x=
5x-
×12=
.
6.58÷x=
| 7 |
| 50 |
5x-
| 3 |
| 10 |
| 37 |
| 5 |
(1)6.58÷x=
,
6.58÷x×x=
×x,
×x=6.58,
×x×
=6.58×
,
x=47;
(2)5x-
×12=
,
5x-
=
,
5x-
+
=
+
,
5x=11,
5x÷5=11÷5,
x=
.
| 7 |
| 50 |
6.58÷x×x=
| 7 |
| 50 |
| 7 |
| 50 |
| 7 |
| 50 |
| 50 |
| 7 |
| 50 |
| 7 |
x=47;
(2)5x-
| 3 |
| 10 |
| 37 |
| 5 |
5x-
| 18 |
| 5 |
| 37 |
| 5 |
5x-
| 18 |
| 5 |
| 18 |
| 5 |
| 37 |
| 5 |
| 18 |
| 5 |
5x=11,
5x÷5=11÷5,
x=
| 11 |
| 5 |
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