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Ajutor!
61,3+[20,5-1,4•(X+2)]=74,8. X=??
[4,2+(0,5+X:3)+15,6]:2=10,9. X=??
27:[(0,X+3,4):1,6+5]=3,6. X=??​


Ajutor 61320514X2748 X4205X31562109 X270X3416536 X class=