问题
解答题
求未知数X 4.5X÷3=2.25 X-
0.5:
|
答案
(1)4.5X÷3=2.25,
4.5X÷3×3=2.25×3,
4.5x÷4.5=6.75÷4.5,
x=1.5;
(2)X-
X=8.5,3 20
x=8.5,17 20
x÷17 20
=8.5÷17 20
,17 20
x=10;
(3)0.5:
=1 4
X,2 3
×1 4
x=0.5×1,2 3
x÷1 6
=0.5÷1 6
,1 6
x=3.