Please help me solve these problems. Thank you!!

Use the inverse of the coefficient matrix to solve each system of equations.

10. 5x +2z =3

2x + 2y +z =4

-3x + y - z =5

12. 2x + 2y -4z = 12

2x + 6y = 16

-3x - 3y +5z =-20

Use the inverse of the coefficient matrix to solve each system of equations.

10. 5x +2z =3

2x + 2y +z =4

-3x + y - z =5

12. 2x + 2y -4z = 12

2x + 6y = 16

-3x - 3y +5z =-20