Jawabanmu

Jawaban paling cerdas!
2014-08-26T16:05:20+07:00
=35m+42n+7-50m+20n-9
=-15m+62n-2
2014-08-26T16:06:15+07:00
(42n + 35m + 7) - (50m - 20n + 9) =
 Pertama, kita "kali" kan ' - ' nya .. jadi,

= 42n + 35m + 7 - 50m + 20n + 9
= 62n - 15m + 44 <~ Jawaban