The inverse of matrix (A) is given. (A-1=[[3,2,1],[1,1,2],[1,2,1]]) Use the inverse to solve for (x). (Ax=[[2],[3],[-1]]x=)
a) (x = [1, -2, 3])
b) (x = [-1, 2, -3])
c) (x = [2, -3, 1])
d) (x = [3, -1, 2])