问题
解答题
求未知数x.
x:5=
|
答案
(1)
x+3 4
x=5,5 6
x=5,19 12
x×19 12
=5×12 19
,12 19
x=
;60 19
(2)x:5=
,0.15 0.6
0.6x=5×0.15,
0.6x÷0.6=0.75÷0.6,
x=1.25.
求未知数x.
x:5=
|
(1)
x+3 4
x=5,5 6
x=5,19 12
x×19 12
=5×12 19
,12 19
x=
;60 19
(2)x:5=
,0.15 0.6
0.6x=5×0.15,
0.6x÷0.6=0.75÷0.6,
x=1.25.