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Rezolvati:
463+236-ax8+207-104x0+111x1=993


Răspuns :

1017-8a=993
-8a=-24 /•(-1)
8a=24
a=24/8
a=3
a8+207= 699+111=993
a8+207=810=993
a8=207+810+993
a8=2010
a=2010:8
a=251.25