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2014-10-16T15:17:09+03:00
X+n=102x:n=3 rest 10 
x=3n+10

3n+10+n=102
4n=102-10
4n=92
n=92:4
n=23

a=3*23+10
x=69+10
x=79
2 5 2
2014-10-16T15:17:19+03:00
X=3x9+10 X=28 Inlocuiesti 28+n=102 N=102-28 N= 74