Jawabanmu

2014-01-26T18:46:49+07:00
3z-3 = z+6
2z = 9
z = 4,5 

z+5 = 
4,5 + 5 = 9,5
2014-01-26T18:49:02+07:00
3z-3 = z+6
3z-z=6+3
2z = 9
z = 9/2
z= 4,5

nilai z + 5 = 4,5 + 5 = 9,5
ini jawaban saya