4 5y )-( 2y 16 July 8, 2019 16 32 64 128 4 5y )-( 2y 16 simplified 4 5y )-( 2y 16 find the difference 2x 5y 4 3x 2y 16 0 by elimination method 2x 5y 4 3x 2y 16 0 by substitution method 2x 5y 4 3x 2y 16 0 by cross multiplication method 5y 16 2y y 4 6 2y 3y 4 5y 6y 16 4 5y=16 2 y=