1 2 x 8 )- 15 =- 3 July 8, 2019 16 32 64 128 1 2 x 8 )+ 10 3 5 x 15 )+ 9 1 2 x 3 y 15 8 x 5 y 77 1 3 15 x 2 12 x 8 1 2 6 15 x 5 8 1 4 3 ( 1 7 )-( 8 3 )- 2 x 15 11
