Question

Find the largest value of x for which $2(x-1)\le 9-x$ and $x\in W$.

Answer 1

$2(x-1)\le 9-x$

$2x-2\le 9-x$

$3x\le 11$

$x\le 3\frac{2}{3}$

$x\epsilon W$

$x\epsilon \{0,1,2,3\}$

Largest value of $x$ is 3.