Jawabanmu

2014-02-11T11:59:30+07:00
1/2x - 6 = x + 1, semuanya dikali 2, biar penyebutnya ilang.
x - 12 = 2x + 2
-x = 14
x = 14

good luck!
2014-02-11T12:02:40+07:00
1/2x-6=x+1
= 2*1/2x-2*6=2*x+2*1
= x-12=2x+2
= x-2x=2+12
= -x=24
= x=-24