X y 4 3x 2y 7 July 8, 2019 16 32 64 128 X y 4 3x 2y 7 solve graphically Solve the simultaneous equations x y 4 3x 2y 7 4 3x y )-( x 2y )= 4y 7x Solve x and y 3x 5y 4 2y 7 9x X y 4 2x 3y 7 3x 2y 8
