题目内容
| 解方程,我没问题 X:25=
| 5X-5×
|
|
(1)X:25=
,
5x=25×2,
5x÷5=50÷5,
x=10;
(2)5X-5×
=0.8,
5x-
+
=0.8+
,
5x÷5=
÷5,
x=
;
(3)
-4.5+5.5=10,
-4.5+5.5+4.5-5.5=10+4.5-5.5,
×8=9×8,
X=72.
| 2 |
| 5 |
5x=25×2,
5x÷5=50÷5,
x=10;
(2)5X-5×
| 1 |
| 3 |
5x-
| 5 |
| 3 |
| 5 |
| 3 |
| 5 |
| 3 |
5x÷5=
| 37 |
| 15 |
x=
| 37 |
| 75 |
(3)
| X |
| 8 |
| X |
| 8 |
| X |
| 8 |
X=72.
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