4 1 3 1 6 7 July 8, 2019 16 32 64 128 4 2 3 1 6 7 4 1 3 x 7 6 x 2 1 2 4 2 3 1 6 7 as a fraction D 4 1 7 3 1 6 3y 1 4 2y 3 3 1 7y 6 1 7 3 4 1 6 m 1 3 4 1 6 blank 7 1 2 4 7x 1 )= 3 2x 1 )-( 4x 6 6 x 1 )+ 4 3 7x 1 7y 1 4 1 7y 3 6