2x y 2 x 3y 15 July 8, 2019 16 32 64 128 2x y 2 x 3y 15 by substitution method 2x y 2 x 3y 15 by elimination method 2x y 10 x 3y 15 2x y 10 x 3y 15 resposta 2x + 3y
