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Afla numarul necunoscut din fiecare expresie, dupa exemplul oferit 35*f+(800-752:4):2=551

Răspuns :

35×f+(800-752:4):2=551

35×f+(800-188):2=551

35×f+612:2=551

35×f+306=551

35×f=551-306

35×f=245

f=245:35

f=7

35•f+(800-752:4):2=551

35•f+(800-188):2= 551

35•f+612:2= 551

35•f+306= 551

35•f= 551-306

35•f= 245

f= 245:35

f= 7