(x÷6/15)-(x÷3/5)解方程.后面等于3

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(x÷6/15)-(x÷3/5)解方程.后面等于3
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(x÷6/15)-(x÷3/5)解方程.后面等于3
(x÷6/15)-(x÷3/5)解方程.
后面等于3

(x÷6/15)-(x÷3/5)解方程.后面等于3
15x/6--5x/3=3
15x--10x=18
5x=18
x=3.6.

(x÷6/15)-(x÷3/5),这不是方程吧,最后等于几?