l. Solve the system of linear equations by using the method of substitution 3x+y22=2 x2y+z=0 2xy3z=Z 2. Solve the system of linear equations by using graphically: 4x3y=3 5xy=10 2x+y=lL 3. Solve the system of linear equations by using determinant or Cremer' 3 rule x+y+z=7 x+2y+3z=16 x + 3y + 42 = 22. -1 1 2 3 4. If A= -3 2 -1 and B= 2 4 6 . Prove that AB # BA. -2 0 1 2 3 5. Show that (A-]) ' = A, where A = 2 : 3 2 6. Find the inverse of the matrix 2 2 3 A=011