Substitution would be the best method for solving which system?
O x = 6
2x - 3y = 8
3x - 2y = 18
4x + 5y = 60
O x + y = 7
x - 4y = 12
O y = 2x
x + y = 28

Substitution would be the best method for solving which system O x 6 2x 3y 8 3x 2y 18 4x 5y 60 O x y 7 x 4y 12 O y 2x x y 28 class=