4y 13 5 July 8, 2019 16 32 64 128 4y 13 57 4y 13 53 4y 5x 13 4y 13 2y 5 5x 4y 13 2x y 4 7x 4y 13 5x 2y 19 Solve 13 4y 5 7x 4y 13 9x 5y 37 4y 13
