问题
解答题
|
答案
(1)x×
=8 9 5 6
x×
÷8 9
=8 9
÷5 6 8 9
x=
;15 16
(2)
-1 4
x=1 4 1 6
-1 4
x+1 4
x=1 4
+1 6
x1 4
=1 4
+1 6
x1 4
-1 4
=1 6
+1 6
x-1 4 1 6
x=1 4 1 12
x×4=1 4
×41 12
x=
;1 3
(3)
x-3 4
x=2 3 1 12
x=1 12 1 12
x×12=1 12
×121 12
x=1.