问题
解答题
求未知数x的值: x-0.25x=6
|
答案
(1)x-0.25x=6,
0.75x÷0.75=6÷0.75,
x=8;
(2)
:3 10
=2 3
:x,3 5
x=3 10
×2 3
,3 5
x×3 10
=10 3
×2 5
,10 3
x=
.4 3
求未知数x的值: x-0.25x=6
|
(1)x-0.25x=6,
0.75x÷0.75=6÷0.75,
x=8;
(2)
:3 10
=2 3
:x,3 5
x=3 10
×2 3
,3 5
x×3 10
=10 3
×2 5
,10 3
x=
.4 3