Y 4 x =- 5y 6 July 8, 2019 16 32 64 128 Y x 4 6x 5y 17 48x 5y 3 y 4 * x 2y 6x 3y 2 3 4x 4 5y 6 7z x y z =- 45 X–5y=5 y=– 4 5x–6
