2x y 1 4x 3y 7 July 8, 2019 16 32 64 128 2x y 7 4x 3y 1 0 by elimination method 4x+3y=7 x 2x-y =1 find the of xy 2x y 7 4x 3y 1 0 2 2x y 7 4x 3y 1 0 X 3y 1 4x 3y 2x y 7 7 2x 3y 1 4x y 9