Jawabanmu

2014-05-16T10:53:40+07:00
Misal 1/x = a. 1/y = b, 1/z = c
didapat : 
a+b = 2
2b-c = -3
a-c = 2
dengan eliminasi dan substitusi, a = 3, b = -1, c = 1 sehingga x = 1/3, y = -1, z = 1
jadi x+y+z = 1/3