问题
解答题
解方程 6-x=
|
答案
(1)6-x=2 3
6-x+x=
+x2 3
+x-2 3
=6-2 3 2 3
x=51 3
(2)2x+
=1 6 7 6
2x+
-1 6
=1 6
-7 6 1 6
2x÷2=1÷2
x=1 2
(3)x-(
+3 14
)=4 7 1 2
x-
=11 14 1 2
x-
+11 14
=11 14
+1 2 11 14
x=
.9 7