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