Gugustiuc11 Gugustiuc11 16-11-2016 Matematică a fost răspuns Dterminati numerele naturale care verifica egalitatile:a) (x+200):20=45b) (320+x)×15=5100c) 4x-1000:50-620:4=5d) (3×x+5×x):8=100e) 15×(36×x-12×x):120=3f) 7×(15×x+35×x):10+2×x=185