4y 13 7 July 8, 2019 16 32 64 128 4y 13 75 7x 4y 13 4y 13 =- 6y 7 X 4y 13 7x 3y 29 4x 13 4y 7 4y 8 7y 13 7x 4y 13 5x 2y 19 7x 4y 13 3 2 7 4y 13 =- 6 7x 4y 13 metodo de sustitucion 7x 4y 13 9x 5y 37
