3 (- 2x 15 )=- 6 x 1 July 8, 2019 16 32 64 128 5 2x 3 )- 2 3 2x )= 15 6 x 1 6 x )+( 12 x )-( 3 2x )= 15 2x 15 12 3 6x 4x 1 3 (- 6x 9 )=- 3x 15 2x 6x 1 15 x 5 2x 3 138 2 6x 3 )= 15 2x 4
