Y 7 3y 7 July 8, 2019 16 32 64 128 2x y 7 x 3y 7 3x y 7 2x 3y 7 7x 3y 3 3x y 7 Y 72x 3y 32x 7 Y 7 x x 3y 7 7 (- y 9 )- 3y =- 7 4x 7 y 7x 3y 4x y 7 5x 3y 7 3y 3 y 7y 7 3y 2 is X 3y 7 y 3y 7 1 Y x 7 4x 3y =- 7 3x y 7 dan 5x 3y 7 Y =x 7 dan 4x + 3y =-7 Y 7 2 1 3y y 7 3
