Use Matrix Inversion to solve the collection of systems of linear equations. You do not need to show how you calculate any inverses, but you do need to state what the inverses are and how you are...

Use Matrix Inversion to solve the collection of systems of linear equations. You do not need to show how you calculate any inverses, but you do need to state what the inverses are and how you are using them.

a.)   −x + 2y + 3z = 1  , x + y + z = 2  ,  2x + y + 3z = 3

b.)   −x + 2y + 3z = 0  , x + y + z = 0  , 2x + y + 3z = 7

c.)   −x + 2y + 3z = 2  , x + y + z = 1   , 2x + y + 3z = 1