问题
解答题
|
答案
(1)
X+1 4
X=1 2
,5 8
(
+1 4
)X=1 2
,5 8
X=3 4
,5 8
X×3 4
=4 3
×5 8
,4 3
X=
;5 6
(2)
=6 5x
,2.4 3.8+1.2
5x×2.4=6×5,
12x=30,
12x÷12=30÷12,
x=2.5;
(3)3.2X-4×3=52,
3.2X-12=52,
3.2X-12+12=52+12,
3.2X=64,
3.2X÷3.2=64÷3.2,
X=20.