2x 13 5x 7 July 8, 2019 16 32 64 128 2x 3y 13 5x y 7 2x y 13 এবং 5x 6y 7 সমীকরণদ্বয় 2x 7y 13 and 5x ky 32 13 5x 8 2x 7 1 x 2 x 13 2x 7
