4y 5 3y 9 July 8, 2019 16 32 64 128 3x 4y 5 2x 3y 9 5x 4y 5 2x 3y 9 4y 5 9 2 3y 4y 9 3y 5 =- 14 3y 7 5 4y 9y 5 4y=-32 94
