问题
解答题
解方程x-
|
答案
(1)x-
=5 6
,1 6
x-
+5 6
=5 6
+1 6
,5 6
x=1;
(2)x+3.5×2=12,
x+7=12,
x+7-7=12-7,
x=5;
(3)0.6x-0.5=3.1,
0.6x-0.5+0.5=3.1+0.5,
0.6x=3.6,
0.6x÷0.6=3.6÷0.6,
x=6.
解方程x-
|
(1)x-
=5 6
,1 6
x-
+5 6
=5 6
+1 6
,5 6
x=1;
(2)x+3.5×2=12,
x+7=12,
x+7-7=12-7,
x=5;
(3)0.6x-0.5=3.1,
0.6x-0.5+0.5=3.1+0.5,
0.6x=3.6,
0.6x÷0.6=3.6÷0.6,
x=6.