4 2x 5y 10 July 8, 2019 16 32 64 128 X 2y 4 2x 5y 10 3x 10y xy 4 2x 5y xy 2 10 4 2x 5y 1 7x 10y 4 2x 5y =- 1 2x 10 5y 4 solve for y Xy 3 4 vĂ 2x 5y 10 X 10 4 5y 2x X 2y 4 0 2x 5y 10 0 2x 4y 4 3x 5y 10