Anthony and Sam are selling pies for a school fundraiser. Customers can buy apple pies and lemon meringue pies. Anthony sold 6 apple pies and 4 lemon meringue pies for a total of $80. Sam sold 6 apple pies and 5 lemon meringue pies for a total of $94. Write a system of equations (2 equations) that would be used to solve this problem.