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Calculeaza valorile necunoscute lor :
613:a=5 rest 3
b:3=219 rest 1
763:c=9 rest 7
d:6=124 rest 2


Răspuns :

613:a=5 rest 3
a=(613-3) : 5
a=610:5
a=122


b:3=219 rest 1
b=219×3+1
b=657+1
b=658


763:c=9 rest 7
c=(763-7):9
c=756:9
c=84


d:6=124 rest 2
d=124×6+2
d=744+2
d=746