2x 3 2 x 1 )= 4 x 1 )- 7 July 8, 2019 16 32 64 128 3 (- 2x 1 )- 2 x 13 )= 7x 4 1 x 3 4 7x 1 )-( 2x 1 x 2 )= x 3 2 solve 3 4 7x 1 4 )-( 2x 1 x 2 )= x 11 3 x 5 )+ 1 4 2x 1 )= 2 x 7 )- 1 3 4 7x 1 )-( 2x 1 x 2 )= x 3 2
