Diketahui nilai p memenuhi persamaan ½(p+3)=⅔(4-p). Nilai p-2=...

1/2(p+3)=2/3(4-p)
1/2p + 3/2 = 8/3 - 2/3p
1/2p + 2/3p = 8/3 - 3/2
3/6p + 4/6p = 16/6 - 9/6
7/6p = 7/6
p = 1

p-2=1-2=-1