14 5x 4x 3 July 8, 2019 16 32 64 128 14 5x 4x 3x 1 5x 14 1 4x 3 3x 2 5x 14 4x 4x 3y 14 5x 3y 25 4x 3y 14 5x y 8 5x 14 31 4x 73 4x 14 5x 3x 12 5x 7 14 4x )=- 329 4x 3y 14 5x 2y 29 5x 6y 14 4x 3y =- 20 4x 3y 14 5x 2y 2