问题
解答题
解方程.
x-
1-
|
答案
(1)
x+3 7
x=1 4 19 5
(
+3 7
)X=1 4 19 5
X=19 28 19 5
X×19 28
=28 19
×19 5 28 19
X=
;28 5
(2)x-
x=255 6
(1-
)X=255 6
X=251 6
X×6=25×61 6
X=150;
(3)1-
X=1 6 1 2
1-
X+1 6
X=1 6
+1 2
X1 6
+1 2
X=11 6
+1 2
X-1 6
=1-1 2 1 2
X=1 6 1 2
X×6=1 6
×61 2
X=3.