5 13 x 78 July 8, 2019 16 32 64 128 78 5 x 13 2 0 53 1 5 9 13 x 780 solve the equation X 5 vĂ 13 x 78 If 1 5 9 13 x 780 13 5 78 x then x 5 x 7 = 35 5 13 x 13/5 x 5 5 x 78 13 5 x 7