问题
解答题
求末知数X
|
答案
(1)0.9X-4.6=4.4,
0.9X-4.6+4.6=4.4+4.6,
0.9X=9,
0.9X÷0.9=9÷0.9,
X=10;
(2)
:2 3
=X:9,5 6
X=5 6
×9,2 3
X=6,5 6
X÷5 6
=6÷5 6
,5 6
X=
.36 5
求末知数X
|
(1)0.9X-4.6=4.4,
0.9X-4.6+4.6=4.4+4.6,
0.9X=9,
0.9X÷0.9=9÷0.9,
X=10;
(2)
:2 3
=X:9,5 6
X=5 6
×9,2 3
X=6,5 6
X÷5 6
=6÷5 6
,5 6
X=
.36 5