In Exercises 4556, solve each system by the method of your choice. If there is no solution or an infinite number of solutions, so state. Use set notation to express solution sets. Explain why you selected one method over the other two. 2(x y) 4x 1 3(x y) x y 3

[VITIATING FACTORS] ILLEGALITY Statutory illegality 3) Licence: a) (Legal) the purpose of licence is merely to raise revenue b) (Illegal) the purpose is to protect the public interest Case law • General rule: 1) A contract tainted with illegality is void and not enforceable. 2) No party may claim on an illegal contract....