Răspuns:
90 81 72 63 54
Explicație pas cu pas:
Jnibugugug
[tex]n = 9a8a7a6a5a \\\\9+a+8+a+7+a+6+a+5+a=35+5a\\\\a=1= > 35+5*1=40= > 4+0=4-nu.convine\\\\a=2= > 35+5*2= > a=45= > 5+5=9- convine\\\\a=9\\\\9a8a7a6a5a=9+2+8+2+7+2+6+2+5+2=45=4+5=9-divizibil .cu.9[/tex]
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Răspuns:
90 81 72 63 54
Explicație pas cu pas:
Jnibugugug
Răspuns:
[tex]n = 9a8a7a6a5a \\\\9+a+8+a+7+a+6+a+5+a=35+5a\\\\a=1= > 35+5*1=40= > 4+0=4-nu.convine\\\\a=2= > 35+5*2= > a=45= > 5+5=9- convine\\\\a=9\\\\9a8a7a6a5a=9+2+8+2+7+2+6+2+5+2=45=4+5=9-divizibil .cu.9[/tex]