Răspuns :
x:5=7 rest
rest <5
rest=1,2,3,4
x=7x5+r=35+r
r=1,x=36
r=2,x=37
r=3,x=38
r=4,x=39
x=36,37,38,39
rest <5
rest=1,2,3,4
x=7x5+r=35+r
r=1,x=36
r=2,x=37
r=3,x=38
r=4,x=39
x=36,37,38,39