Consider the system of equations -aty+ z=-4 - x + 3y - 9z = -16 6x - 2y - 26z = 0 a) Rewrite the system of equations in augmented matrix form [A|B] [1 mark] b) Hence solve the system of equations clearly showing all your working [6 marks] If there are no solutions write "NA". If there are infinitely many solutions write your answers in terms of the parameter "t". X= y= Z= c) State rank(A|B) and rank(A) explaining your reasoning [2 marks] rank(A|B)= rank(A)=