7 2 x 1 )- 3 18 July 8, 2019 16 32 64 128 7 x 3 1 18 x 2 6x 9 1 /( x 3 2 7 x 3 18 0 8 x 1 2 3 x 7 18 1 3 x 3.14 x 7 2 x 18 1 3 x pi x 7 2 x 18 2 4x 7 )= 3 x 1 )+ 18
