Răspunsuri

2014-10-24T17:59:12+03:00
N*(73-9*a)=n 
73-9*a=1 pt ca n:n=1
9a=72
a=72:9
a=8

(50-7*a)*m=m
50-7*a=1  pt ca m:m =1
7*a=49   pt ca 50-1=49
a=49:7
a=7
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