Y 3x 6 2x 4 4 July 8, 2019 16 32 64 128 Y 4x 6 2x 4 3x 2 6 2x y 6 3x 4y 4 graphical method 2x y 6 3x 4y 4 Y 4 3x 4 3y =- 2x 6 3x + 2y = 6
