Solve the following system of equations for x₁ using either Cramer's Rule or Gauss Elimination (forward elimination with or without pivoting, with or without scaling, and with either back substitution or backward elimination).SHOW YOUR WORK.

2 x₁-4 x₂ +5 x₃=4.5

-4 x₁+8 x₂+6 x₃=-1.0

5 x₁ -3 x₃=-0.5