Jawabanmu

2014-09-12T04:40:02+07:00
6z-3+1 = -4z-18
10z-2 = -18
10z = -16
z = -1,6
2014-09-12T04:42:17+07:00
3(2z-1)+1 = 2(2z+9)
= 6z-3+1 = 4z+18
= 6z-2 = 4z+18
= 6z-4z = 18+2
= 2z = 20
= z = 10