9х – 4 (х – 7) ≥ –3 July 8, 2019 16 32 64 128 9х 4 х 7 ) - 3 9х 4 х 5 )- 1 7 х 3 )- 2х 9х 4 3 х 2 )= 6 (- 2 х )+ 7
