Let A 7 16 b b 6 by 2 10 OB The matrix is not invertible Solve Ax b and b a Find A and use it solve the four equations Ax b Ax b Ax b and Axb b The four equations in part a can be solved by the same set of operations since the coefficient matrix is the same in each case Solve the four equations in part a by row reducing the augmented matrix A b b b b l 16 a Find A Select the correct choice below and if necessary fill in the answer box to complete your choice OA The inverse matrix is A Type an integer or simplified fraction for each matrix element Type an integer or simplified fraction for each matrix element Solve Ax by Type an integer or simplified fraction for each matrix element STER