问题
解答题
解方程.
X-12%X=2.816. |
答案
(1)
x+1 2
x=1 3
,3 4
x=5 6
,3 4
x×5 6
=6 5
×3 4
,6 5
x=
;9 10
(2)x-12%x=2.816,
0.88x=2.816,
0.88x÷0.88=2.816÷0.88,
x=3.2
解方程.
X-12%X=2.816. |
(1)
x+1 2
x=1 3
,3 4
x=5 6
,3 4
x×5 6
=6 5
×3 4
,6 5
x=
;9 10
(2)x-12%x=2.816,
0.88x=2.816,
0.88x÷0.88=2.816÷0.88,
x=3.2