Berapa nilai X dari -1/2 (x+4)=1/2 (x+12)

-1/2 (x + 4) = 1/2 (x + 12)

-1/2x – 2 = 1/2x + 6

-1/2x – 1/2x = 6 + 2

-x = 8

x = -8