问题
解答题
解方程
x-
2x+
|
答案
(1)
+x=1 6 3 4
+x-1 6
=1 6
-3 4 1 6
x=
;7 12
(2)x-
=1 12 3 8
x-
+1 12
=1 12
+3 8 1 12
x=
;11 24
(3)2x+
=6.51 2
2x+
-1 2
=6.5-1 2 1 2
2x=6
2x÷2=6÷2
x=3.
解方程
x-
2x+
|
(1)
+x=1 6 3 4
+x-1 6
=1 6
-3 4 1 6
x=
;7 12
(2)x-
=1 12 3 8
x-
+1 12
=1 12
+3 8 1 12
x=
;11 24
(3)2x+
=6.51 2
2x+
-1 2
=6.5-1 2 1 2
2x=6
2x÷2=6÷2
x=3.