7 1 5 x 2 1 6 July 8, 2019 16 32 64 128 7 1 5 x 2 1 6 as a fraction 7 1 6 x 2 5 6 1 4 6 2 3 1 7 x 5 6 1 12 1 5 2 1 6 x 8 1 7 12 7 4 x 5 6 1 2 1 3 1 9 1 7 1 5 x 2 3 4 6 8 1 6x 1 )( 6x 1 )-( 12x 5 )( x 2 7 3x 7 2 x )- 5 x 1 )=- 6x 1 7 1/2 x 5 1/2 7 1/5 x = 7 1/2