Jawabanmu

2014-06-05T05:59:47+07:00
18,19,20 = 57
bilangan trbessar = 20
thanks
  • vhya
  • Gemar Membantu
2014-06-05T06:00:06+07:00
X + (x+1) + (x+2) = 57
3x + 3 = 57
3x = 57 - 3
3x = 54
x = 54 : 3
x =18

Bilangan terbesar = x + 2 = 18 + 2 = 20