3 4 x 2 3 1 7 July 8, 2019 16 32 64 128 3 4 7 x )+ 2 1 7 5 3 4 7 х )+ 2 1 7 5 3 x 3 )- 2 1 x )= 2x 2 x 4 )+ 7 2x 3 2 x )- 1 3 7x 1 4 3 4 x 3 1 2 x 72 3 2 1 4 x )= 2 3 7x 3 4x 3 )+ 2 7x 1 4 3 4x 2 )= 7 1 2x 8 3 3 4 x 75 2 3 − 1 3) 4 (3 + x)/2 7 3 x-5=x+3