3 7 x 3 5 x 7 8 July 8, 2019 16 32 64 128 3 7 x 1 5 x 7 8 3 7 x 13 5 3 7 x 8 5 3 7 x 5 8 3 7 x 11 8 3 7 5 x 7 = 35 3 x-5=x+3
