3 x 5 12 3 1 July 8, 2019 16 32 64 128 3 5 x 12 15 3x 5 12 1 3 7 12 3 5 x 1 3 7 18 x 5 12 3 2 3 3 5 x 12 13 5x 12 3 5 x 12 3 3 x-5=x+3 3 x 3 5/12 3 5 x 12
