Use matrix inversion to solve the collection of systems of linear equations. (a) -x - 4y + 2z = -18 x + 2y Z = 15 x + y Z = 16 (x, y, z)= (b) -x - 4y + 2z = -2 x + 2y z = 5 X + y z = 2 (x, y, z) = (c) -X 4y + 2z = 0 Z = 0 z = 0 x + 2y X + y (x, y, z) =

Use the inverse of the coefficient matrix to solve the system of equations. x+2y+3z = 9 2x+3y + 4z = -13 -x-2y-4z = 2 (x,y,z)=(.. (Type an ordered triple, using integers or fractions.)

Write the system of equations as an augmented matrix -r 4b 250 - 2r + 7b 350 - - 4r + 156 + 150 - ||