Question

Solve : $15-2(x-1)<15,xϵZ$.

Answer 1

Given $15-2(1x-1)<15:x\in Z$

$⟹-2(x-1)<0$

$⟹x-1>0⟹x>1$

But $x\in Z$

$⟹x\in Z^{+}-\left\{1\right\}$