13 points tanfin12 2.6.028. 6. consider the following system of equations. x2 +x3 = bi x1 + x2 +x3 b2 x1- x1 2x2-x3 b3 (a) write the system of equations as a matrix equation. bi 1 1 1 x1 -1 b2 x2 1 -2 -1 by x3 (b) solve the system of equations by using the inverse of the coefficient matrix. (i) where bi 4, b2 -4 , b3 0 (x1, x2, x3) (ii) where bi 0, bz =3, b3 =-11 (xi, x2, need ? read it watch it submit answer save progress viewing saved work revert to last response practice another version 7. o-1 points tanfin12 2.6.038. find the matrix a if 4 1 1 3 a=