问题
解答题
解方程.
|
答案
(1)X-60%=60,
X-60%+60%=60+60%,
X=60.6;
(2)X-
X=2 7
,1 14
X=5 7
,1 14
X÷5 7
=5 7
÷1 14
,5 7
X=
;1 10
(3)(A-
):1 3
=3 4
,5 6
(A-
)÷1 3
=3 4
,5 6
(A-
)÷1 3
×3 4
=3 4
×5 6
,3 4
A-
=1 3
,5 8
A-
+1 3
=1 3
+5 8
,1 3
A=
.23 24