Question

6/x-2 apartine lui N

Answer 1

6/x-2 este numar natural daca 6|(x-2)
x-2 ∈ {1,2.3.6}
x-2=1 ⇒   x=3
x-2=2 ⇒   x=4
x-2=3 ⇒   x=5
x-2=6 ⇒   x=8
x∈ {3,4,5,8}