问题
解答题
解方程 35+x=53 x-
0.1x=30. |
答案
(1)35+x=53,
35+x-35=53-35,
x=18;
(2)x-
=3 7
,1 2
x-
+3 7
=3 7
+1 2
,3 7
x=
;13 14
(3)0.1x=30,
0.1x÷0.1=30÷0.1,
x=300.
解方程 35+x=53 x-
0.1x=30. |
(1)35+x=53,
35+x-35=53-35,
x=18;
(2)x-
=3 7
,1 2
x-
+3 7
=3 7
+1 2
,3 7
x=
;13 14
(3)0.1x=30,
0.1x÷0.1=30÷0.1,
x=300.