a fost răspuns

afla valoarea lui N din  egalitatile                                       5 ori N plus 245 egal 845                                                    54 impartit la N plus 67 ori 5 egal 344                                     N impartit la 3 ori 8 egal 616                                                                        894 minus N impartit la 4 egal 833

Răspuns :

5*N+245=845
5N+245=845
5N=845-245
5N=600
N=600:5
N=120

54:N+67*5=344
54:N+335=344
54:N=344-335
54:N=9
N=54:9
N=6

N:3*8=616
N:24=616
N=616*24
N=14784

894-N:4=833
894-833=N:4
61=N:4
N=61:4
N=15 rest1

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