3 1 5 x 2 7 8 July 8, 2019 16 32 64 128 3 1 5 х 5 8 2 7 3 6 x 1 2 7 8 6 5 3 5 8 1 2 x 6 3 4 7 8 2 5 x 1 3 x 7 8 as a fraction 80 3 7 5 x 2 1 3 5 8 x 2 1 4 x 7 5 8 5 x 3 )( x 7 )-( 5x 1 )( x 2 )= 8 5 3 x )- 2 x 7 )= 8x 1 5 x 20