问题 解答题
求未知数x.
0.5x-4×0.25=1.25
32:x=
5
3
5
4
答案

(1)0.5x-4×0.25=1.25,

0.5x-1=1.25,

0.5x-1+1=1.25+1,

0.5x=2.25,

0.5x÷0.5=2.25÷0.5,

x=4.5;

(2)32:x=

5
3
5
4

5
3
x=32×
5
4

5
3
x=40,

5
3
3
5
=40×
3
5

x=24.

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