Jika rata-rata x-2, y+3, z+5 adalah 6 maka jika nilai x+4, y+6, z+2 brapa rata-ratanya

 nilai rata rata

x-2 + y+ 3 + z+ 5= 6(3) = 18
x+y+z + 6 = 18
x+y+z = 12...(1)

x+4 + y+6 + z+ 2 = (x+y+z) + 12 = 12+12 = 24
rata rata  24/3 = 8