please assist

Consider the system of linear equations 7219y= 2 z+3y=3 {a} The coefficient matrix of this system is SCI :H:l {b} The inverse of the coefcient matrix is SC] SC] {Write your entries as decimal nunbers, rounded to two decimal places if necessary. (-3] The solution to the system, rounded to two decimal places [if necessary], is z = C] and y = :1