Question 1161520

{{{-3*matrix(2,2,2,7,8,-6)}}}+{{{2*matrix(2,2,0,1,4,-2)}}}


{{{matrix(2,2,-6,-21,-24,18)}}}+{{{matrix(2,2,0,2,8,-4)}}}


{{{matrix(2,2,(-6+0),(-21+2),(-24+8),(18-4))}}}


{{{matrix(2,2,-6,-19,-16,14)}}}


so, answer is B