Jawabanmu

2014-06-06T10:04:05+07:00
Rata = 7
total 7. 11 = 77
8 + 5+ x + 6 + 9 +4 +7+9 + +8+6 +8 = 70 +x
77 = 70 + x
7= x
1 2 1
2014-06-06T10:06:57+07:00
8+5+6+9+4+7+9+8+6+8+x= 70+x

70+x / 11 = 7
70+x = 7.11
70+x = 77
x=7