2x 3y 7 5x y 9 July 8, 2019 16 32 64 128 2x 3y 7 5x y 9 by elimination method 2x 3y 7 5x y 9 by substitution method 2x 3y 7 5x y 9 by cross multiplication method Solve graphically 2x 3y 7 and 5x y 9
