2x y 6 x 3y 4 July 8, 2019 16 32 64 128 2x y 8 6x 3y 4a X y 6 2x 3y 4 by substitution method 2x y 4 3x 2y 6 x 3y 5 0 X y 6 2x 3y 4 by elimination method 2x y 4 x 3y 6 graph 2x 3y 6 y 23 x 4 Solve x y 6 2x 3y 4 X y 6 z 3 và 2x 3y 4z 24 X 3y 6 y ≥ 2x 4 3x + 2y = 6 6xy - 4y + 6 - 9x 2x + y = 4
