7x 5 4 x 1 July 8, 2019 16 32 64 128 7x 3 5 x 4 )+ 1 7x 5 4x 16 7x 5 4x 14 7x 5 4x 10 7x 5 4x 13 7x 5 4x 11 7x 5 4x 17 7x 5 4x 15 7x 5 4x 12 4 x 5 )-( 7x 9 )= 1 4 x 5 )+ 3x 7x 12 3x 1 x 5 7x 4 3x 3x 1 2 x 7x 5 )= 4 7x 5 x 4 )= 18 7x 4 5 x 10
