问题
解答题
求未知数X
|
答案
(1)X÷
=6 35
÷26 45
,13 25
X÷
=6 35
,10 9
X÷
×6 35
=6 35
×10 9
,6 35
X=
;4 21
(2)0.75X-
=1 4
,1 2
0.75X-
+1 4
=1 4
+1 2
,1 4
0.75X=
,3 4
0.75X÷0.75=
÷0.75,3 4
X=1.
求未知数X
|
(1)X÷
=6 35
÷26 45
,13 25
X÷
=6 35
,10 9
X÷
×6 35
=6 35
×10 9
,6 35
X=
;4 21
(2)0.75X-
=1 4
,1 2
0.75X-
+1 4
=1 4
+1 2
,1 4
0.75X=
,3 4
0.75X÷0.75=
÷0.75,3 4
X=1.