Question

11⋮(x-1)

Answer 1

x=12

Answer 2

11⋮ (x - 1) ⇒ (x - 1 ) ∈ Ư ( 11)

(x - 1 ) ∈ Ư ( 11) = { 1; 11}

⇒ x ∈ { 2;12}

Answer 3

x= 12

Answer 4

\(11⋮\left(x-1\right)\)

\(\Rightarrow x-1\inƯ\left(11\right)\)

\(\Rightarrow x-1\in\left\{1;11;-1;-11\right\}\)

\(\Rightarrow x\in\left\{2;12;0;-10\right\}\)

Answer 5

x=12