20 2 3 1 x 2 July 8, 2019 16 32 64 128 3 4 x 20 )= 2 1 2 x 2 20 x 3 x 1 x 20 2 x 10 20 1 2 3 2x x 4 2x 1 )- 3 x 2 )= 20 30 1 2x 3 )= 20 x 2 2x 1 3 x 4 2 5x 20 6 1 2 3 5 x 2 )= 20 2 3 x 2 2 3 x 1 20 27 7 20 1 2 x 3 20 2 x 1 )+ 3 x 5 )= 2x 20
