问题
解答题
3
|
答案
3
:x=60%:(3 7
-x 10
),3 5
60%x=3
×(3 7
-x 10
),3 5
x=3 5
x-12 35
,72 35
x-3 5
x=12 35
x-12 35
-72 35
x,12 35
x=-9 35
,72 35
x×9 35
=-35 9
×72 35
,35 9
x=-8.
3
|
3
:x=60%:(3 7
-x 10
),3 5
60%x=3
×(3 7
-x 10
),3 5
x=3 5
x-12 35
,72 35
x-3 5
x=12 35
x-12 35
-72 35
x,12 35
x=-9 35
,72 35
x×9 35
=-35 9
×72 35
,35 9
x=-8.