Question

Solve the following in equations
$\frac{1}{2}x+2\le x-1$, where $x\in N$

Answer 1

$\frac{x}{2}+2\le x-1\Rightarrow \frac{x}{2}-3\ge 0\Rightarrow \frac{x}{2}\ge 3\Rightarrow x\ge 6\Rightarrow x=6,7,\mathrm{8...}$