Video solusi : Diberikan (a 6 -1 2d)+ (4 a+b c+3 3) = 3(a b c d). Persamaan tersebut dipenuhi jika A. a= 2; b = 3; c = 4 dan d = 1 B. a = 2; b = 4; c =-1 dan d = 3 C. a = 2; b =-4; c = 1 dan d =-3 D. a = 2; b =-4; c =-4 dan d = 3 E. a = 2; b = 4; c = 1 dan d = 3