4 x 7 )=- 2 1 2x July 8, 2019 16 32 64 128 4 2x 1 )- 7 x 1 )= 2 6 X 7 )( 3x 2 )-( 5x 1 )( 2x 4 7 1 2 x )- 3 4 2x 4 5x 2 )- 7 1 2x )+ 5 8 x 3x 2 7 4 x 1 )/ 5 2 2x 1 )/ 3 2x 7 x 2 3x 4 1 4 x 2 )- 7 2x 1 )+ 9 3x 4 )= 30 4 3 4x 2 )= 7 1 2x 8 4x 7 1 2 2x 3 4 x 3 5 2 2x 1 7 7 4 x 3 2x 1 2 as a fraction