问题
解答题
解方程. 23X-5X=360 5X-
|
答案
(1)23X-5X=360,
18x=360,
18x÷18=360÷18,
x=20;
(2)5X-
=5 6
,5 12
5x-
+5 6
=5 6
+5 12
,5 6
5x=
,15 12
5x×
=1 5
×15 12
,1 5
x=
.1 4
解方程. 23X-5X=360 5X-
|
(1)23X-5X=360,
18x=360,
18x÷18=360÷18,
x=20;
(2)5X-
=5 6
,5 12
5x-
+5 6
=5 6
+5 12
,5 6
5x=
,15 12
5x×
=1 5
×15 12
,1 5
x=
.1 4