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Aflati x din:
a) (144:x-4):2-22:74=1
b) (144:x-4):2-3=1
c) 312:(v+5)=24

Va rog repede, dau coroana


Răspuns :

312:24=13
verificare :(144:13-4):2-3=1
(144:9):2-3=1
16÷2-3=1
8-3=5