Tolong jawab ya besok sudah ulangan Pake cara kerja

a. -6 + 8 = 2 x (selisih -6 dan 8) = 2 x 14 = 28

b. 3 + ( 5 + (-3)) = 3 + (2 x (selisih 5 dan -3) = 3 + (2 x (8)) = 3 + (16) = 19 x (slisih 3 dan 16) = 19 x 13 = 247

here you go..