Jawabanmu

2014-05-30T19:23:03+07:00
 \frac{16 + 10 + (x-2) + 14 + 12 + 21 + (y + 3) + 12 + 15 + 8}{10} = 14
 \frac{108 + (x - 2) + (y + 3)}{10} = 14
14 x 10 = 108 + (x - 2)  + (y + 3)
140 = 108 + (x - 2) + (y + 3)
140 - 108 = x - 2 + y + 3
32 = x + y + 1
32 -1 = x + y
x + y = 31

Semoga bermanfaat, dan mohon maaf jika ada kesalahan :')

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