7 1 x 3 9 July 8, 2019 16 32 64 128 7 1 x )+ 3 9 4 5 7 1 4x x 9 3 8 7 1 2 x 9 3 4 7 1 3 x 9 3 6 1 7 x 3 4 9 8 1 7 x 3 )- 2 9 7 1 4х х 9 3 8 7 9 3 1 х 9 3 1 7 9 x 3 4 1 7 9 x 3 5 9 7 x 3 ) 9 x 1 )+ 8 4 3x 1 )+ 7 x 2x 3 9x 7 9 5 6 x 1 3 Y 5 7 x 1 3 2 4 9 7 x 3 )= 9 x 1 )- 38