题目内容
解方程,我没问题
x:35=
5x-15×
=0.8÷0.2.
x:35=
| 2 |
| 5 |
5x-15×
| 1 |
| 3 |
(1)x:35=
,
5x=35×2,
5x÷5=70÷5,
x=14;
(2)5x-15×
=0.8÷0.2,
5x-5=4,
5x-5+5=4+5,
5x÷5=9÷5,
x=1.8.
| 2 |
| 5 |
5x=35×2,
5x÷5=70÷5,
x=14;
(2)5x-15×
| 1 |
| 3 |
5x-5=4,
5x-5+5=4+5,
5x÷5=9÷5,
x=1.8.
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