Jawabanmu

Jawaban paling cerdas!
2014-09-10T14:27:56+07:00
(42n + 35m + 7) - (50m - 20n + 9)
= 42n +35m + 7 - 50m + 20n - 9
= 62n - 15m - 2
2 5 2
2014-09-10T14:29:21+07:00