Which would be the next step in solving for matrix a? a+(3 -4 -11 24)=(16 -5 0 -9) which of these is the answer a=(16 -5 0 -9)+(3 -4 -11 24) a=(16 -5 0 -9)÷(3 -4 -11 24) a=(10 -5 0 - -4 -11 24) a=(1- -5 0 -9)+(3 -4 -1 24)